All posts by: Magazine Editor


Meet a Retriever—Monroe Kennedy, III, ’12, mechanical engineering professor at Stanford University

Meet Monroe Kennedy, III, a Meyerhoff Scholar (M20) who earned his B.S. in mechanical engineering from UMBC in 2012 before earning his M.S. in robotics and Ph.D. in mechanical engineering and applied mechanics from the University of Pennsylvania. Monroe is now an assistant professor in the mechanical engineering department at Stanford University. His work is in collaborative robotics, building systems capable of extending robotic autonomy to scenarios where robots work closely around humans and must anticipate their needs to be effective teammates. Outside of his role as a professor, Monroe serves as a national director for Black in Robotics, a nonprofit organization dedicated to enhancing diversity within the field of robotics. Take it away Monroe!

Q: What brought you to UMBC?

A: I came to UMBC for its mechanical engineering program and the Meyerhoff Scholars Program. I had a passion for invention and design and UMBC was the perfect place to gain knowledge so I could have an impactful career. During high school, I was taking courses at a community college, and one instructor was aware of the Meyerhoff program and nominated me—I am so grateful for that initial introduction.

UMBC is truly a melting pot of ideas and culture. You will find a diverse and vibrant community and a place to call home.

Monroe Kennedy, III, '12, M20

Q: What do you love about your academic program?

A: I love mechanical engineering. When I first joined UMBC, the movie Iron Man had just come out and there was a screening on the Quad. I remember thinking “I want to do that!” Tony Stark was the only hero whose superpower was truly achievable—his ability to innovate and invent.

Mechanical engineering is one of the oldest engineering disciplines. If you follow the Ph.D. “academic tree,” you will find many of the first mechanical engineers had advisors in more fundamental sciences. Because it is a fundamental engineering discipline it covers many areas from controls, dynamics, design, fluids, vibrations, and so much more.

An individual who learns to embrace the diversity of subjects within mechanical engineering learns to think about problems and solutions holistically and brings solutions from every sub-field to solve problems in the most elegant way possible. As a roboticist, a lot of my work is endowing my robots with a form of “intelligence,” but often we find ourselves wishing our robot had an additional physical feature, and as mechanical engineers, it is not difficult for us to make such concepts a reality very quickly.

Mechanical engineering professor and students looking at a robotic fingertip developed in the lab called DenseTact that will enable robots to perform dexterous tasks like humans in the near future.
Monroe, a mechanical engineering professor at Stanford University, and his students looking at a robotic fingertip developed in the lab called DenseTact that will enable robots to perform dexterous tasks like humans in the near future.

Q: Tell us about someone in the community who has inspired you or supported you, and how they did it.

A: While at UMBC I was very fortunate to be able to work in Professor J. Vanderlei Martins‘ LACO (Laboratory for Aerosol and Cloud Optics) lab. Professor Martins was an amazing advisor who was able to use my limited experience at the time to contribute to a very impactful project involving designing the de-orbiting system for a picosatellite. Being given an opportunity to work on something that traveled to space was a key element in my ultimate trajectory, and I am very grateful to Professor Martins for his support and mentorship.

My favorite part of being a UMBC alumnus is the sense of forever community I’ve felt in the decade since graduating.

Monroe Kennedy, III, '12, M20

Q: Tell us about your HOW.

A: The Meyerhoff community played a very big role in my career. Through the program, I was coached on applying for internships and graduate school. Additionally, having the support of professors like J. Vanderlei Martins, working in his laboratory, and receiving his recommendation was crucial to my academic trajectory.

Monroe Kennedy returned to UMBC's campus recently to meet with current Meyerhoff students and tour faculty labs.
Monroe returned to campus recently to meet with current Meyerhoff students and tour faculty labs.

Q: Tell us about your current job. What do you like most about it?

A: I am an assistant professor in the mechanical engineering department with a courtesy appointment in computer science at Stanford University. My work is in collaborative robotics, building systems capable of extending robotic autonomy to scenarios where robots work closely around humans and must anticipate their needs to be effective teammates.

I love the Stanford community. You will find here that dreaming big and doing the extraordinary is quite ordinary here.

Outside of my role as a professor, I serve as a national director for Black in Robotics, a nonprofit organization dedicated to enhancing diversity within the field of robotics.

Group photo from a Black in Robotics networking event at the Toyota Research Institute.
Group photo from a Black in Robotics networking event at the University of California, Berkeley.

Q: What drives you to support UMBC?

A: I want to see UMBC continue to produce leaders who are inquisitive and courageous, unafraid of setbacks, and yet very accomplished and making the world a better place.

* * * * *

UMBC’s greatest strength is its people. When people meet Retrievers and hear about the passion they bring, the relationships they create, the ways they support each other, and the commitment they have to inclusive excellence, they truly get a sense of our community. That’s what “Meet a Retriever” is all about.

Learn more about how UMBC can help you achieve your goals.

Meet a Retriever—Hyojin Choi, psychology and social work major and student leader

Meet Hyojin Choi, a double major in psychology and social work at UMBC at The Universities at Shady Grove. A transfer student, Hyojin is an active member of the peer advisory team and president of the Psychology Student Associationall while also serving as a social work intern at the Housing Opportunities Commission of Montgomery County, Maryland. In fact, he looks forward to working there after graduation. Take it away, Hyojin!

Q: What do you love about your internship?

A: As an intern at HOC, I have learned much about how housing works in the United States and the many challenges people face while trying to remain housed. I have had to make some tough choices. I have also had the privilege of working with the Tobytown community, which HOC works with. It is a predominantly African-American, older community with a lot of history. It has been such an honor to meet and get to know the residents and hear their stories.

Q: What’s the one thing you’d want someone who hasn’t joined the UMBC community to know about the support you find here?

A: We get a lot of support from our professors at USG. All the professors I have had have an open-door policy regarding their offices. They also make it clear that they can be contacted via email and are very responsive. Professors are always open to hearing about how we are doing, well after we finish the courses they teach. You can tell they want us to succeed as the next generation of social workers.  

Q: What’s it like at the Shady Grove campus?

A: I love that UMBC at Shady Grove is where you see the same people in almost all your classes. It allows us to get to know the other students and foster lifelong friendships. My two closest friends are alumni of the social work program at Shady Grove. And I have built so many lasting connections with other students that don’t happen at other universities. We all go through courses and the internship process together and eventually apply to graduate school together. We are together for the very high and very low stressful times. But through it all, we know that other people are going through the exact same thing, which helps. The diversity of people also creates diversity in dialogues–for example, in my social policy courses. Those two classes have had some of the most lively (but respectful) dialogues on hot-button issues.

A group of students enjoys snacks in a classroom
Students enjoy a Social Work Student Association/Psychology Student Association Halloween event at UMBC Shady Grove.

Q: Tell us about your journey to UMBC Shady Grove and how you’ve been supported along the way. 

A: I came to UMBC because of the small class sizes and the passion of the people within the social work department. Students here want to learn; and I’ve found community in the close-relationships I have formed with my peers. As a social work student, I have met so many people that I have built lifelong friendships with. The professors have been nothing but professional, personable, passionate, driven, welcoming, and inclusive to students of all backgrounds.

The people I have met in my classes have driven me so much. They are part of the reason why I love to study to UMBC. I always feel that every class is a chance to learn something I did not know before. I believe that my time at UMBC has taught me to be an advocate for myself and for others. Currently, I am working to advocate for the UMBC-Shady Grove students to make improvements in areas where there may be some shortcomings.

Whenever there is a chance to learn something new or expand your horizons—take it. You never know where it could lead you.

Hyojin Choi

UMBC Shady Grove psychology and social work major

Q: How else are you involved on campus?

A: I am a member of the Peer Advisory Team (PAT) since 2022 at UMBC-Shady Grove. I have loved the opportunity to meet with prospective students. It gives such a unique insight into the minds of the incoming transfer students and allows me to really connect and meet people from other majors who I would otherwise not have had the chance to meet. I am also the president of the Psychology Student Association. As the president of the PSA, I have met a lot of students. We also get to work with other student organizations on our campus, and we collaborated for a special holiday event last year in 2023.

A student stands beneath a tree and looks at the water
Enjoying the Cherry Blossom Festival in Washington, D.C.

Q: What advice would you give to future Retrievers?

A: Always take opportunities to learn and lead. Whenever there is a chance to learn something new or expand your horizonstake it. You never know where it could lead you. It may end up changing you life in ways that you could never have foreseen in a million years.

* * * * *

UMBC’s greatest strength is its people. When people meet Retrievers and hear about the passion they bring, the relationships they create, the ways they support each other, and the commitment they have to inclusive excellence, they truly get a sense of our community. That’s what “Meet a Retriever” is all about.

Learn more about how UMBC can help you achieve your goals.

Meet a Retriever—Laura Howell ’86, disability advocate and Alumni Association governance committee chair

Meet Laura Howell; she graduated from UMBC in 1986 with a B.A. in political science. She is an advocate for those with developmental disabilities and the CEO of the Maryland Association of Community Services, having recently celebrated her 20th anniversary in the position. Laura is also an active member of the UMBC Alumni Association Board of Directors, serving as chair of the governance committee. She credits her time at UMBC and the support she received here for preparing her for a career of advocacy and service. Take it away, Laura!

Q: Tell us a little bit about yourself.

A. I graduated from UMBC in 1986 with a degree in political science. It was the perfect major for me, as I knew at an early age that I wanted to be involved in political work. I used my education, experience, and contacts from UMBC to develop a career that has largely focused on advocacy at the state level to make a difference in the lives of Marylanders.

To me, a unique part of the DNA of UMBC is that the school will support you to achieve whatever your dream is, even if that dream seems unobtainable as a student.

Laura Howell '86

Q: Tell us about your current job. What do you like most about it?

A: I am the CEO of the Maryland Association of Community Services. I just celebrated my 20th anniversary in this position, and the opportunity to be a leader and advocate for and with people with developmental disabilities and the incredible community providers that support them is priceless.

Q: What is your WHY? What brought you to UMBC?

A: To be honest, I attended UMBC starting in 1983 as a kid who grew up in Catonsville and did not have the financial opportunity to attend a more expensive college. I was incredibly fortunate that UMBC was “affordable,” with the help of a lot of financial aid and scholarships. While there were a few other options, UMBC was the only school I ever considered. I was incredibly lucky to have such an amazing university in my backyard!

Laura on stage with Governor Wes Moore at Developmental Disabilities Day in Annapolis 2024, a huge advocacy event that she helped lead.
Laura Howell on stage with Maryland Governor Wes Moore at Developmental Disabilities Day in Annapolis 2024, a huge advocacy event that she helped lead.

Q: Tell us your HOW.

A: The professors at UMBC were incredibly supportive. I was a determined student but on the quiet side, and I felt seen by the political science faculty who believed in me and supported my career goals, which started with wanting to work in Annapolis at age 19. UMBC connected me to an internship with a legislator which quickly turned into a job with the University of Maryland’s Legislative Office. The experience I gained in those formative years has served me well ever since.

Laura standing with her first mentor, Judy Orlinsky, after receiving an award for Best Employee for the State of Maryland, Professional and Administrator Category, for her work in the Maryland Homeless Services Program in the late 80s and early 90s.

Q: Tell us about someone in the community who has inspired you or supported you, and how they did it.

A: I met my first mentor, Judy Orlinsky, at the age of 19 through a work-study position I obtained through UMBC. She worked for the University of MD System in Annapolis, and through her support and the opportunities she extended to me, I learned a tremendous amount about the workings of our State Capitol, and how to be successful lobbying for change. As a testament to the strength of that relationship, she is still an important person in my life 40 years later.

Pictured left: Laura standing with her first mentor, Judy Orlinsky, after receiving an award for Best Employee for the State of Maryland, Professional and Administrator Category, for her work in the Maryland Homeless Services Program in the late 80s and early 90s.

Q: What’s your favorite part of Retriever Nation?

A: My favorite part about being a Retriever, in addition to the great education I received, is watching UMBC become a powerhouse nationally as an institution of higher education.

Q: Tell us what you love about your organization.

A: As a member of the UMBC AABOD, it has been great fun to reconnect with UMBC, and to see how it has grown and changed, while still retaining the qualities that made it great in the 80s. To me, a unique part of the DNA of UMBC is that the school will support you to achieve whatever your dream is, even if that dream seems unobtainable as a student.

Q: What drives you to support UMBC?

A: I donate monthly to the Alumni Endowed Scholarship Fund. This has always been meaningful, but I recently realized that a small scholarship from the Endowed Scholarship Fund was the final piece of financial aid that helped me realize my dream of spending a semester in London, studying and interning with a Member of Parliament in 1986. That was truly a full-circle moment.

Pictured right: Laura in London in 1986.

About the Alumni Endowed Scholarship Fund

Through the Alumni Endowed Scholarship, the board of directors strives to make a difference in the lives of deserving students, to help them achieve their dream of receiving a university degree and joining the alumni community.

The board offers a general and legacy scholarship to outstanding undergraduate UMBC students. Eligible students may apply for the general and legacy scholarships each year. The award for the Alumni Association General and Legacy Scholarships for 2023 – 2024 is at least $2,000. These scholarships are partially funded through the generous support of UMBC alumni.

Laura in London in 1986.

* * * * *

UMBC’s greatest strength is its people. When people meet Retrievers and hear about the passion they bring, the relationships they create, the ways they support each other, and the commitment they have to inclusive excellence, they truly get a sense of our community. That’s what “Meet a Retriever” is all about.

Learn more about how UMBC can help you achieve your goals.

Meet a Retriever—Ciomara Matamoros, mom of three and aspiring school psychologist

Meet Ciomara Matamoros ’24, psychology, who is a first-generation college student pursuing her dream of becoming a school psychologist while raising three kids. She’s a member of the Peer Advisory Team at The Universities at Shady Grove and part of the Psychology Student Association. After graduation, she plans on getting her master’s in psychology. Here, Ciomara shares how she gets it all done. 

Q: Briefly introduce yourself. What’s one thing you’d want another Retriever to know about you?

A: I am a senior psychology major at UMBC. I am also a mother of three and my favorite activities include watching my kids play sports. As a first-generation college student, I really want to be an example for my three girls and to show them that if I can overcome the obstacles to go to college, then they can too.

a family poses together at Christmas
Matamoros at home with her husband and three daughters, Angeli, Danielle, and Hailey.

Q: What brought you to UMBC?

A: I came to UMBC because I knew someone who came here for a psychology major. You might think a psych major offers limited career options, but at UMBC I’ve learned about so many different types of career choices. There are lots of opportunities to network and to apply to internships.

Q: What do you plan to do after graduation?

A: I am getting my master’s degree in school psychology. I was accepted into multiple programs I applied to, thanks to the knowledge that UMBC provided me with. These programs are very hard to get into—they only accept 12 students a year. I am extremely excited to pursue my dream! I want to thank Diane Alonso, principal lecturer of psychology and director at Shady Grove, for providing me with so much support and helping me through my academic journey. Also, anytime I had any kind of questions regarding my transcripts and credits, Abigail Grainger, assistant director of undergraduate recruitment and retention, was always there to point me in the right direction.

Ciomara Matamoros smiles with a UMBC shirt on

Q: How has the UMBC community supported you in pursuing your dreams? 

A: There is so much support at UMBC, from the faculty down to the students. Everyone is willing to help you in any way they can. As a mom, I appreciated the flexibility and the large variety of courses I could take at any time.

Q: What clubs, teams, or organizations are you a part of? What do you love about them?

A: I’m a part of the Psychology Student Association. Also, I’m a member of the Peer Advisory Team, which is a specialized program here at UMBC-Shady Grove to help new students feel connected to peers and supported and encouraged. 

a group of students in black and gold hold up letters that say UMBC
Matamoros, holding the “U” stands with a group of fellow members of the UMBC-Shady Grove Peer Advisory Team. (Marlayna Demond ’11/UMBC)

Q: You’re a first generation student. Tell us more about that part of your life.

A: UMBC has helped me grow so much, not only as a student but also as a leader. It’s helped me become more confident in my own abilities. 

* * * * *

UMBC’s greatest strength is its people. When people meet Retrievers and hear about the passion they bring, the relationships they create, the ways they support each other, and the commitment they have to inclusive excellence, they truly get a sense of our community. That’s what “Meet a Retriever” is all about.

Learn more about how UMBC can help you achieve your goals.

Meet a Retriever—Poulomi Banerjee ’16, M.P.P. ’21, annual donor and advocate of the UMBC community

Meet Poulomi Banerjee, a double alumna—earning her degree in health administration and policy in 2016 and her M.P.P. in 2021—and current public policy Ph.D. student at UMBC who believes in the power of this community! She has her sights set on becoming just the 141st triple alum in UMBC history (bachelor’s, master’s, and Ph.D. from UMBC). When she’s not working toward Retriever history, Poulomi works as the associate director of annual giving and alumni communications at the Johns Hopkins Bloomberg School of Public Health. In her spare time (we’re just as surprised as you that she has any), you can find Poulomi with her camera taking family portraits, at a Philadelphia Union soccer game, or reading with her best friend, Sarah Lilly ‘17, information systems, and her two cats, Gizmo and Dolly. Take it away, Poulomi!
Poulomi Banerjee '16, M.P.P. '21 sitting on the True Grit statue while wearing her graduation gown.

Q: Tell us about what you love about your academic program.

A: I love the practicality of the grad programs in the School of Public Policy. Throughout my time in both the master and Ph.D. programs, I’ve been able to have my assignments directly correlate with my work and research goals. In fact, my professors have made it such a wonderful experience that I continued after my master’s degree with my Ph.D.—something I never thought would be in my academic journey.

Q: Tell us about someone in the community who has inspired you or supported you, and how they did it.

A: I attribute a lot of my UMBC experience to my best friend, Emma Hagen ’14, media and communications studies. She made me excited about going to UMBC from her Tumblr posts before I became a student and we’ve made amazing memories together as students and continue to as alumni.

(Pictured left: Banerjee sitting on the True Grit statue after her undergraduate Commencement.)

Q: What is your WHY? What brought you to UMBC?

A: I came to UMBC because they accepted me. It’s not glamorous or inspiring, I know. I’ve lived in Maryland my entire life and people who know me know I did not want to go to UMBC in the first place. I wanted to transfer after my first semester, but now I’m working on my third and final degree here and I think that’s an important story to tell. As I mentioned earlier, I used Tumblr to get excited about UMBC once I was accepted and that’s where I found Emma posting about a zip line, a cotton candy machine, and concerts from the Student Events Board.

I also would spend time talking to Yoo-jin Kang ’15, interdisciplinary studies and modern languages and linguistics, and Asif Majid ‘13, interdisciplinary studies, whom I went to high school with, about their experiences at UMBC. I wanted to find a community, and I wanted to have a purpose and a meaningful experience at UMBC. From my conversations with Yoo-jin and Asif, I felt hopeful about being able to do that.

To tap into the magic that is UMBC, you have to seek your community.

Poulomi Banerjee '16, M.P.P. '21

Q: What’s your favorite part of Retriever Nation?

A: The unlimited Google storage space with my UMBC email. Just kidding! My best friends and so much of my community comes from UMBC. So much of who I am today is because of the people I met and continue to meet from UMBC. When you lean into the Retriever spirit, there’s really nothing you can’t do with the support that this community provides.

Q: What’s the one thing you’d want someone to know about the community support you find here?

A: To tap into the magic that is UMBC, you have to seek your community. Everyone who is a part of my network didn’t come into my purview on their own. I found people who would help me enjoy my time and be as successful as possible at UMBC and beyond. Once you find those people, the opportunities you can receive are endless.

Poulomi with her pod at the STRiVE Leadership Retreat
Banerjee (bottom, right) with her pod at the STRiVE Leadership Retreat.

Q: Tell us about your HOW. 

A: I started getting involved in different groups to find my community and purpose. I joined organizations like SGA, the Student Events Board, Tea Club, and started researching sororities at UMBC. What really changed everything for me was the STRiVE Leadership Retreat. That’s where I truly learned the impact I could make at UMBC and in my community. It’s where I started forming my network at UMBC.

STRiVE is why I fell in love with UMBC and why I’m still a student to this day. Once the spring semester started my first year, I hit the ground running at UMBC and haven’t looked back since. I grew closer to Emma through the Student Events Board and she ended up bringing me into commonvision, UMBC’s design and print center, where I learned about graphic design and printing. Sarah Lilly, Kelly Robier ’15, political science, and Bentley Corbett-Wilson ’17, M.A. ‘20, all taught me about leadership and organizing, and all of them, along with Emma, are also always helping me grow and be a better person. This is just the tip of the iceberg.

There is an endless list of staff, faculty, and students who are now alumni who have shaped me into the person I am today. I attribute so many of my accomplishments to the folks I’ve met at UMBC. Had I not stayed, had I not found my community, and had I not made the effort to take advantage of what UMBC had to offer, I, 100 percent, would not be as successful as I have been both in my personal and professional life.

Q: Tell us about your current job. What do you like most about it?

A: I’m the associate director of annual giving and alumni communications at the Johns Hopkins Bloomberg School of Public Health. My favorite part of fundraising in higher education is getting to help students have an incredible experience while on their academic journey. I studied public health in undergrad so being back in that space is a nice full-circle moment for me too.

Q: What drives you to support UMBC?

A: As someone who works in and studies higher education funding and fundraising, I understand that there’s so much a university wants to do to help students but can’t because of limited funding or not wanting to significantly increase tuition. That’s where the alumni community comes in.

I’m happy to donate to Retriever Essentials or The Women’s Center so they can provide the most resources to students during their time at UMBC. I’m of the belief that every dollar counts. I graduated with a hefty amount of student loans, but I know that I can give $10 or $20 every year on a day of giving or when I get an email from the dean and still make an impact on a student’s life.

(Pictured right: Banerjee wearing a Johns Hopkins Bloomberg School of Public Health sweatshirt.)

Poulomi Banerjee smiling at the camera wearing a Johns Hopkins Bloomberg School of Public Health sweatshirt.

* * * * *

UMBC’s greatest strength is its people. When people meet Retrievers and hear about the passion they bring, the relationships they create, the ways they support each other, and the commitment they have to inclusive excellence, they truly get a sense of our community. That’s what “Meet a Retriever” is all about.

Learn more about how UMBC can help you achieve your goals.

From thousands to millions to billions to trillions to quadrillions and beyond: Do numbers ever end?

Written by Manil Suri, professor of mathematics, UMBC

Curious Kids is a series for children of all ages. If you have a question you’d like an expert to answer, send it to curiouskidsus@theconversation.com.


Why don’t numbers end? – Reyhane, age 7, Tehran, Iran


Here’s a game: Ask a friend to give you any number and you’ll return one that’s bigger. Just add “1” to whatever number they come up with and you’re sure to win.

The reason is that numbers go on forever. There is no highest number. But why? As a professor of mathematics, I can help you find an answer.

First, you need to understand what numbers are and where they come from. You learned about numbers because they enabled you to count. Early humans had similar needs – whether to count animals killed in a hunt or keep track of how many days had passed. That’s why they invented numbers.

But back then, numbers were quite limited and had a very simple form. Often, the “numbers” were just notches on a bone, going up to a couple hundred at most.

How numbers evolved throughout the centuries.

When numbers got bigger

As time went on, people’s needs grew. Herds of livestock had to be counted, goods and services traded, and measurements made for buildings and navigation. This led to the invention of larger numbers and better ways of representing them.

About 5,000 years ago, the Egyptians began using symbols for various numbers, with a final symbol for one million. Since they didn’t usually encounter bigger quantities, they also used this same final symbol to depict “many.”

The Greeks, starting with Pythagoras, were the first to study numbers for their own sake, rather than viewing them as just counting tools. As someone who’s written a book on the importance of numbers, I can’t emphasize enough how crucial this step was for humanity.

By 500 BCE, Pythagoras and his disciples had not only realized that the counting numbers – 1, 2, 3 and so on – were endless, but also that they could be used to explain cool stuff like the sounds made when you pluck a taut string.

Zero is a critical number

But there was a problem. Although the Greeks could mentally think of very large numbers, they had difficulty writing them down. This was because they did not know about the number 0.

Think of how important zero is in expressing big numbers. You can start with 1, then add more and more zeroes at the end to quickly get numbers like a million – 1,000,000, or 1 followed by six zeros – or a billion, with nine zeros, or a trillion, 12 zeros.

It was only around 1200 CE that zero, invented centuries earlier in India, came to Europe. This led to the way we write numbers today.

This brief history makes clear that numbers were developed over thousands of years. And though the Egyptians didn’t have much use for a million, we certainly do. Economists will tell you that government expenditures are commonly measured in millions of dollars.

Also, science has taken us to a point where we need even larger numbers. For instance, there are about 100 billion stars in our galaxy – or 100,000,000,000 – and the number of atoms in our universe may be as high as 1 followed by 82 zeros.

Don’t worry if you find it hard to picture such big numbers. It’s fine to just think of them as “many,” much like the Egyptians treated numbers over a million. These examples point to one reason why numbers must continue endlessly. If we had a maximum, some new use or discovery would surely make us exceed it.

The symbols of math include +, -, x and =.

Exceptions to the rule

But under certain circumstances, sometimes numbers do have a maximum because people design them that way for a practical purpose.

A good example is a clock – or clock arithmetic, where we use only the numbers 1 through 12. There is no 13 o’clock, because after 12 o’clock we just go back to 1 o’clock again. If you played the “bigger number” game with a friend in clock arithmetic, you’d lose if they chose the number 12.

Since numbers are a human invention, how do we construct them so they continue without end? Mathematicians started looking at this question starting in the early 1900s. What they came up with was based on two assumptions: that 0 is the starting number, and when you add 1 to any number you always get a new number.

These assumptions immediately give us the list of counting numbers: 0 + 1 = 1, 1 + 1 = 2, 2 + 1 = 3, and so on, a progression that continues without end.

You might wonder why these two rules are assumptions. The reason for the first one is that we don’t really know how to define the number 0. For example: Is “0” the same as “nothing,” and if so, what exactly is meant by “nothing”?

The second might seem even more strange. After all, we can easily show that adding 1 to 2 gives us the new number 3, just like adding 1 to 2002 gives us the new number 2003.

But notice that we’re saying this has to hold for any number. We can’t very well verify this for every single case, since there are going to be an endless number of cases. As humans who can perform only a limited number of steps, we have to be careful anytime we make claims about an endless process. And mathematicians, in particular, refuse to take anything for granted.

Here, then, is the answer to why numbers don’t end: It’s because of the way in which we define them.

Now, the negative numbers

How do the negative numbers -1, -2, -3 and more fit into all this? Historically, people were very suspicious about such numbers, since it’s hard to picture a “minus one” apple or orange. As late as 1796, math textbooks warned against using negatives.

The negatives were created to address a calculation issue. The positive numbers are fine when you’re adding them together. But when you get to subtraction, they can’t handle differences like 1 minus 2, or 2 minus 4. If you want to be able to subtract numbers at will, you need negative numbers too.

A simple way to create negatives is to imagine all the numbers – 0, 1, 2, 3 and the rest – drawn equally spaced on a straight line. Now imagine a mirror placed at 0. Then define -1 to be the reflection of +1 on the line, -2 to be the reflection of +2, and so on. You’ll end up with all the negative numbers this way.

As a bonus, you’ll also know that since there are just as many negatives as there are positives, the negative numbers must also go on without end!


This article is republished from The Conversation under a Creative Commons license. Read the original article and see more than 250 UMBC articles available in The Conversation.

Domestic violence survivors seek homeless services from a system that often leaves them homeless

Written by Nkiru Nnawulezi, associate professor of psychology at UMBC, and Lauren Cattaneo, George Mason University

About 1 in every 3 women, and 1 in 4 men, will experience domestic violence over their lifetime. Since domestic violence can escalate to the point of serious injury or murder, survivors must take action to increase their safety – potentially even fleeing their homes.

Of the total homicides that occurred in the U.S. in 2020, 34% of women and 6% of men were murdered by their intimate partners.

Research has clearly shown the connection between domestic violence and homelessness. For example, a California study found that domestic violence survivors were four times more likely to experience housing instability compared with those who hadn’t experienced domestic violence.

We are two psychologists based in Washington D.C., who study the experiences, struggles and strengths of domestic violence survivors.

In Washington, 1 in 4 people experiencing homelessness report a history of domestic violence, with nearly half citing it as the direct reason for their homelessness.

Domestic violence and housing instability

Housing instability brings its own set of problems for survivors, including poor health, economic insecurity and the risk of future violence. These stresses can lead survivors back to the abusive relationship or into other unsafe housing situations.

Because the vicious cycle between domestic violence and housing instability is well known, domestic violence experts have argued for policies to provide quick, specialized assistance for survivors who seek emergency housing support.

Too often, however, these policies fall flat. Our 2018-2019 study of domestic violence survivors in the city’s services for homelessness found that out of 41 participants, only four received immediate housing, with either a bed in a shelter or a hotel.

We collaborate with domestic violence advocates and attorneys as members of the Domestic Violence Action Research Collective, a project of the DC Coalition Against Domestic Violence. This group collectively decides on research questions through discussions about what hinders community practitioners’ ability to support domestic violence survivors.

Domestic violence advocates and attorneys in our group alerted us to repeated stories about how the district government’s homelessness services system was failing survivors. The group designed a study to find out why.

A green and pink bar graph explaining a study of 41 domestic violence survivors and their access to housing

Survivors’ access to homelessness services

From May 2018 to May 2019, our team recruited study participants in the waiting room of the Virginia Williams Family Resource Center, which is the gateway for families needing emergency housing in Washington.

Of 779 clients we screened, 183 responded that domestic violence was the reason for their housing instability; 41 of those agreed to interviews about their experiences accessing homelessness services.

A Washington law states that survivors of domestic violence do not have to prove their residency in the district in order to be eligible for homeless services. Policy also dictates that survivors should be asked questions to sensitively assess their circumstances and should meet with an on-site domestic violence housing coordinator to connect them with resources.

Instead of receiving this specialized assistance, many of our participants said they found the intake process confusing and unpredictable. Almost half said they waited more than three hours to meet with staff, sometimes only to find out they needed different information to prove eligibility and would have to restart the process another day.

Participants told us that they hesitated to disclose their domestic violence experiences to staff and described inconsistent responses when they did. Of 20 participants who said they did disclose experiences with domestic violence during their intake, only 11 said they were asked about their experiences by staff, and only two met with the domestic violence specialist at the facility. Several participants shared that when they revealed experiences of domestic violence, staff members simply moved on without asking for further details.

The lack of assistance in response to the disclosure of domestic violence left many participants in distress. As one participant described it: “I left feeling discouraged and embarrassed that I told all of these people I did not know my business, just for them to say it wasn’t good enough.”

An orange and pink flow chart showing the different situations domestic violence survivors go through before they can access public safe housing
A flowchart shows how participants started in abusive situations and ended up seeking services at Virginia Williams. The Conversation, derived from Domestic Violence Action Research Collective, CC BY-ND

The impact of homelessness services on survivors

Many participants felt that staff ignored their safety concerns, especially when staff insisted that survivors stay with friends, family or their abusive partner, rather than using public resources. Participants said that staff sometimes even contacted those individuals without survivors’ knowledge.

Only 22 of our 41 participants were deemed eligible for services. Four received immediate shelter. Eighteen participants received referrals to public or private sources of housing assistance, or both, but too often these resources were also dead ends. Participants were put on long waitlists, landlords didn’t accept vouchers, or referral options were not responsive to participants’ immediate needs.

For example, a frequent referral was “rapid rehousing” – a program that provides governmental rental subsidies for up to one year, after which people must pay their own rent. Survivors who are eligible for rapid rehousing must find affordable housing in the district, which is a formidable obstacle to program effectiveness.

As one survivor put it: “Where am I going to be able to rent at, that’s not a slumlord, or not in certain dangerous neighborhoods? I’m looking for safety. Running to safety doesn’t mean that I’m trying to run into harm.”

The 19 survivors ineligible for services were given varied reasons, often involving their inability to prove they were homeless. Ten participants told us that at the time they left Virginia Williams, they and their children had nowhere to go. Leaving without assistance prompted difficult choices, including maxing out credit cards to stay in hotels or begging to stay with family and friends in conditions that created new problems.

Some of the people we interviewed believed that the denial of assistance was due to racist and classist stereotypes of Black women seeking to “exploit the system.” Given that 39 of the 41 participants in this study were Black, as was the majority of the clientele at the center, we believe the possibility that racial bias influenced the frequent denial of services is significant.

Underserving domestic violence survivors

If we focus just on the interaction between staff and participants, the simplest interpretation of these results could be that staff are uninformed, unfeeling or both. Or one might wonder whether something is amiss with the survivors seeking assistance – that they are being turned away because they are not following the right steps to receive help.

We believe those interpretations miss the larger context: In our estimation, these interactions are the predictable result of service providers and survivors trying to function within an unworkable system in a context that has very little housing support available to the community.

The need at housing programs in our area dramatically outstrips capacity. This drives survivors who lack resources into an unaffordable rental market, setting off a series of cascading problems. There is a disproportionate impact on communities already subject to structural and interpersonal discrimination, such as the Black women in our study.

Our study shows that this translates into a system that is more focused on determining eligibility than determining needs and restricting spending rather than increasing survivors’ safety, because staff are in the unenviable position of meting out insufficient assistance to many desperate people.

These interactions leave many without good options. One of the participants we interviewed summed up her experience this way: “I was upset. I was discouraged. And it just left me with the thought, well, maybe I’m not in so much danger. Maybe I can just stick it out a little bit longer, just try not to make him upset or anything. I was just trying to make it the best that I could.”


This article is republished from The Conversation under a Creative Commons license. Read the original article.

Bollywood is playing a large supporting role in India’s elections

By Preminda Jacob, associate professor of art history and museum studies

As the largest electorate in history goes to the polls in India from April 19 to June 1, 2024, political parties are seeking to influence voters’ decisions – through cinema.

The incumbent Bharatiya Janata Party, or BJP, seeking a third term in office under the leadership of Prime Minister Narendra Modi, has deployed the medium of cinema, more than others, to spread the party’s goals and ideas.

The BJP claims India as a Hindu nation. The Modi government openly supports films that promote the BJP ideology through providing tax breaks and removing regulatory restrictions, especially when such films are strategically timed to release in theaters ahead of the elections. “Swatantrya Veer Savarkar,” a biopic on an ardent advocate of a purely Hindu nation, was released a few weeks before polling begins for the 2024 elections.

India’s entertainment film industry is a complex behemoth with an output of about 1,500 releases per year and a base of fans that extends around the world. Fabulously choreographed dance routines, catchy lyrics, memorable dialogue and historical and religious imagery make it a favored medium of communication – even for political parties.

The use of Indian popular cinema for political ends has a long history – one that predates Indian independence. As an art historian, I documented how cinematic imagery was used to produce a heroic aura around political figures in the south Indian state of Tamil Nadu in my 2009 book “Celluloid Deities: The Visual Culture of Cinema and Politics in South India.”

The connection between cinema and politics made it the primary vehicle for the lengthy careers of numerous charismatic politicians – some of them screenwriters and film producers, others leading actors and actresses. Since the 1980s, it also set in motion a nationwide trend of using cinematic means to capture the attention of voters.

Mobilizing film fans for electoral campaigns

Viewing movies in theaters is an eventful and enjoyable experience that draws a mass audience. As sociologist Lakshmi Srinivas describes in her 2016 book “House Full,” the release of highly anticipated blockbusters is much like a festival. Most striking is the excitement of audiences as they recite the dialogues, dance to the lyrics and hail stars as they appear on the screen.

In an Indian context, cinema’s impact extends from the movie theater to the street in the form of advertisements, fashion and film music that dominate public spaces. Art historian Shalini Kakar argues that the spectacle of cinema brings forth passionate responses from viewing masses that are much like religious emotion. She discusses case studies of film fans who even worship their favorite celebrities as deities by creating temples to these stars within residential and commercial spaces. These fans conduct religious ceremonies and organize public festivities for their favored stars.

But more often, fans are part of a large and vocal collective. Media theorist S.V. Srinivas found that film fans can make or destroy the careers and lives of stars. If a star decides to venture into politics, these film fans can become active participants in the star’s political campaigns. But if the star does something that the fans disapprove of, they will as easily boycott his films and even destroy the star’s career.

An alignment of cinema and politics

The cinema industry in Tamil Nadu, more than any other in India, has evolved closely with political and social developments in the region since the 1940s. The ideals of Tamil nationalism, a political movement that changed the course of history in Tamil Nadu, were powerfully communicated through the medium of entertainment films. Often, the personalities associated with these films were physically present alongside politicians at party meetings.

A man applies ink on the finger of a woman's hand, that is decked with an intricate pattern of henna.
Voters’ choices can be influenced by popular films in India. AP Photo/Ajit Solanki

In my research, I found that the alignment of cinema and politics in Tamil Nadu was helped by the use of identical advertising media. Political parties regularly commissioned advertisers to produce “star images” of politicians. A favored publicity medium of both the cinema industry and party members was the hand-painted plywood cutout. These full-length portraits, 20 feet to 100 feet in height, featured charismatic leaders of Tamil nationalist parties such as M. Karunanidhi, a prolific and influential scriptwriter, and J. Jayalalithaa, a famous film star turned politician.

Though these political portraits were meant to be realistic rather than melodramatic, the style and scale of these portraits resembled the cinematic star image. In this way, they helped to transfer the power of the cinematic star image to the image of the leader.

I argued that these advertisements played an important role in visualizing, and shaping, the identity politics of Tamil nationalism.

The audience for these images numbered in the millions. When these vibrantly colored portraits of film stars and political leaders appeared side by side in public spaces, they soared above the skyline like celestial beings. Often, the images became the focus of adulation. They were feted and garlanded, people danced, burst crackers, cheered and crowded around these images, and posed next to them for photographs.

The charismatic politicians of the Tamil nationalist movement set the trend of combining the sheen of the star image, the power of political portraiture and the divine aura of icons in their advertising.

Cinema’s role in divisive politics

Under Modi’s leadership, three themes emerge in a cluster of films that favor the BJP’s goals and policies and are endorsed by the party: claiming credit for welfare initiatives, instilling Hindu nationalist beliefs in society, and heightening tensions between the Hindu majority and Muslim minority communities.

For example, a film released in 2017, “Toilet: Ek Prem ki Katha,” or “Toilet: A Love Story,” tells the story of a couple whose marriage starts to fall apart over the lack of a toilet within the home. At the beginning of the film, which is an entertaining musical melodrama, viewers are informed that while Mahatma Gandhi championed for a clean environment, it is Modi who is making that dream a reality through budgeting for the construction of toilets nationwide.

Another series of films in the biopic genre showcases the historical legacy of right-wing Hindu nationalist organizations and their leaders. “PM Narendra Modi,” which reminded voters of the prime minister’s rise from poverty, was scheduled for release just before the 2019 elections. But the Election Commission of India, an independent body charged with ensuring free and fair elections, ordered that the film could be released only after the elections.

A third and more troubling genre is politically polarizing films. Drawing on ethnically charged actual events in which communities of Hindus and Muslims clashed, the scripts for these films dramatize highly biased narratives in which Hindus are cast as the victims while Muslims are the villainous perpetrators.

Widely viewed examples of this genre include “Kashmir Files,” which shows the mass exodus of Hindus from the north Indian state of Kashmir in the early 1990s when they were targeted by a pro-Pakistan armed uprising of Kashmiri Muslims. The film, which demonizes Muslims and shows them committing extremely barbaric and cruel acts, is among those publicly endorsed by the prime minister himself.

Film producers and distributors I interviewed for my research were unanimous that it was impossible to accurately predict whether a film would succeed at the box office, as are the results of the elections.

Should the BJP succeed, however, it would be fair to conclude that one element in the hat trick was a clever endorsement of cinema as a vehicle for party propaganda.

*****

Preminda Jacob, Associate Professor of Art History and Museum Studies, University of Maryland, Baltimore County

This article is republished from The Conversation under a Creative Commons license. Read the original article.

Chinese migration to US is nothing new – but the reasons for recent surge at Southern border are

Written by Meredith Oyen, associate professor of history, UMBC

The brief closure of the Darien Gap – a perilous 66-mile jungle journey linking South American and Central America – in February 2024 temporarily halted one of the Western Hemisphere’s busiest migration routes. It also highlighted its importance to a small but growing group of people that depend on that pass to make it to the U.S.: Chinese migrants.

While a record 2.5 million migrants were detained at the United States’ southwestern land border in 2023, only about 37,000 were from China.

I’m a scholar of migration and China. What I find most remarkable in these figures is the speed with which the number of Chinese migrants is growing. Nearly 10 times as many Chinese migrants crossed the southern border in 2023 as in 2022. In December 2023 alone, U.S. Border Patrol officials reported encounters with about 6,000 Chinese migrants, in contrast to the 900 they reported a year earlier in December 2022.

The dramatic uptick is the result of a confluence of factors that range from a slowing Chinese economy and tightening political control by President Xi Jinping to the easy access to online information on Chinese social media about how to make the trip.

Middle-class Chinese migrants

Journalists reporting from the border have generalized that Chinese migrants come largely from the self-employed middle class. They are not rich enough to use education or work opportunities as a means of entry, but they can afford to fly across the world.

According to a report from Reuters, in many cases those attempting to make the crossing are small-business owners who saw irreparable damage to their primary or sole source of income due to China’s “zero COVID” policies. The migrants are women, men and, in some cases, children accompanying parents from all over China.

Chinese nationals have long made the journey to the United States seeking economic opportunity or political freedom. Based on recent media interviews with migrants coming by way of South America and the U.S.’s southern border, the increase in numbers seems driven by two factors.

First, the most common path for immigration for Chinese nationals is through a student visa or H1-B visa for skilled workers. But travel restrictions during the early months of the pandemic temporarily stalled migration from China. Immigrant visas are out of reach for many Chinese nationals without family or vocation-based preferences, and tourist visas require a personal interview with a U.S. consulate to gauge the likelihood of the traveler returning to China.

A map of North, Central, and South America Chinese migration
Map: The Conversation, CC-BY-NDEmbed Download image Created with Datawrapper

Social media tutorials

Second, with the legal routes for immigration difficult to follow, social media accounts have outlined alternatives for Chinese who feel an urgent need to emigrate. Accounts on Douyin, the TikTok clone available in mainland China, document locations open for visa-free travel by Chinese passport holders. On TikTok itself, migrants could find information on where to cross the border, as well as information about transportation and smugglers, commonly known as “snakeheads,” who are experienced with bringing migrants on the journey north.

With virtual private networks, immigrants can also gather information from U.S. apps such as X, YouTube, Facebook and other sites that are otherwise blocked by Chinese censors.

Inspired by social media posts that both offer practical guides and celebrate the journey, thousands of Chinese migrants have been flying to Ecuador, which allows visa-free travel for Chinese citizens, and then making their way over land to the U.S.-Mexican border.

This journey involves trekking through the Darien Gap, which despite its notoriety as a dangerous crossing has become an increasingly common route for migrants from Venezuela, Colombia and all over the world.

In addition to information about crossing the Darien Gap, these social media posts highlight the best places to cross the border. This has led to a large share of Chinese asylum seekers following the same path to Mexico’s Baja California to cross the border near San Diego.

Chinese migration to US is nothing new

The rapid increase in numbers and the ease of accessing information via social media on their smartphones are new innovations. But there is a longer history of Chinese migration to the U.S. over the southern border – and at the hands of smugglers.

From 1882 to 1943, the United States banned all immigration by male Chinese laborers and most Chinese women. A combination of economic competition and racist concerns about Chinese culture and assimilability ensured that the Chinese would be the first ethnic group to enter the United States illegally.

With legal options for arrival eliminated, some Chinese migrants took advantage of the relative ease of movement between the U.S. and Mexico during those years. While some migrants adopted Mexican names and spoke enough Spanish to pass as migrant workers, others used borrowed identities or paperwork from Chinese people with a right of entry, like U.S.-born citizens. Similarly to what we are seeing today, it was middle- and working-class Chinese who more frequently turned to illegal means. Those with money and education were able to circumvent the law by arriving as students or members of the merchant class, both exceptions to the exclusion law.

Though these Chinese exclusion laws officially ended in 1943, restrictions on migration from Asia continued until Congress revised U.S. immigration law in the Hart-Celler Act in 1965. New priorities for immigrant visas that stressed vocational skills as well as family reunification, alongside then Chinese leader Deng Xiaoping’s policies of “reform and opening,” helped many Chinese migrants make their way legally to the U.S. in the 1980s and 1990s.

Even after the restrictive immigration laws ended, Chinese migrants without the education or family connections often needed for U.S. visas continued to take dangerous routes with the help of “snakeheads.”

One notorious incident occurred in 1993, when a ship called the Golden Venture ran aground near New York, resulting in the drowning deaths of 10 Chinese migrants and the arrest and conviction of the snakeheads attempting to smuggle hundreds of Chinese migrants into the United States.

Existing tensions

Though there is plenty of precedent for Chinese migrants arriving without documentation, Chinese asylum seekers have better odds of success than many of the other migrants making the dangerous journey north.

An estimated 55% of Chinese asylum seekers are successful in making their claims, often citing political oppression and lack of religious freedom in China as motivations. By contrast, only 29% of Venezuelans seeking asylum in the U.S. have their claim granted, and the number is even lower for Colombians, at 19%.

The new halt on the migratory highway from the south has affected thousands of new migrants seeking refuge in the U.S. But the mix of push factors from their home country and encouragement on social media means that Chinese migrants will continue to seek routes to America.

And with both migration and the perceived threat from China likely to be features of the upcoming U.S. election, there is a risk that increased Chinese migration could become politicized, leaning further into existing tensions between Washington and Beijing.


This article is republished from The Conversation under a Creative Commons license. Read the original article and see more than 250 UMBC articles available in The Conversation.

New York City greenlights congestion pricing – here’s how this toll plan is expected to improve traffic, air quality and public transit

Written by John Rennie Short, professor emeritus of public policy, UMBC

New York City is poised to launch the first congestion pricing plan to reduce traffic in a major U.S. metropolitan area. Like many journeys in the Big Apple, this one has been punctuated by delays. Once the system starts up, however, it’s expected to significantly reduce gridlock in Manhattan and generate billions of dollars to improve public transit citywide.

The basic idea is simple. To enter the Congestion Relief Zone, which covers Manhattan south of 60th Street, large trucks will pay $36, small trucks $24, passenger vehicles $15 and motorcycles $7.50. Ride-share vehicles and taxis will pay $2.50 and $1.25, respectively. Peak hours run from 5 a.m. to 9 p.m. on weekdays and 9 a.m. to 9 p.m. on weekends; overnight tolls are discounted by 75%.

Evidence from cities around the world shows that charging motorists fees for driving into city centers during busy periods is a rarity in urban public policy: a measure that works and is cost-effective. Congestion pricing has succeeded in cities including London, Singapore and Stockholm, where it has eased traffic, sped up travel times, reduced pollution and provided funds for public transportation and infrastructure investments.

As an urban policy scholar, I’m looking forward to seeing New York’s plan go into effect. There may well be surprises and adjustments as officials see how it works in practice. But given the heavy costs that traffic imposes on public health and productivity, I’m encouraged to see a major U.S. city finally test this approach. https://www.youtube.com/embed/vbYFpKeVTO0?wmode=transparent&start=0 Congestion pricing in New York City has traveled a long and winding road to adoption.

Nudging drivers

Congestion pricing is a response to externalities – costs or benefits that are generated by one party but incurred by another. Clogged city streets and air pollution are externalities created by urban car users, many of whom live outside the city.

This concept has been around for some time. British economist Arthur Pigou discussed it as early as 1920 as part of his attempt to remedy the suboptimal workings of the market system. In Pigou’s view, taxing harmful activities would discourage people from engaging in them.

Other thinkers took up this idea. In 1963, Canadian economist William Vickrey, a future Nobel laureate, argued that roads were scarce resources that needed to be valued by imposing costs on users.

This approach is behind behavioral economics, the policy strategy of using “nudges” that preserve choice but encourage certain actions. Congestion pricing assumes that increased prices will make people heading into New York think more carefully about their travel patterns, and about alternatives to driving.

New York City public transit receives priority

Map of lower Manhattan with the Congestion Pricing Relief Zone highlighted.
New York’s Congestion Relief Zone covers all of Manhattan below 60th Street, except for the highways around its perimeter and the Carey Tunnel from Battery Park to Brooklyn. Metropolitan Transit Authority, CC BY-ND

Congestion pricing in a city a big as New York is no small step. The New York plan was presented to the board of the Metropolitan Transit Authority in November 2023 after years of study and a detailed environmental impact assessment, required by federal law.

Project sponsors, which include several city agencies and the state transportation department, stated in the impact assessment that on an average weekday, an estimated 1.86 million people entered lower Manhattan by motor vehicle. Travel speeds in Manhattan’s central business district, below 60th Street, declined by 23% between 2010 and 2019, from 9.1 to 7.1 mph. The traffic was generating air and noise pollution, wasting travelers’ time, increasing business costs and preventing emergency vehicles from responding quickly to accidents.

The agencies estimated that the proposed toll system would reduce traffic in the Congestion Relief Zone by 17%, with an associated decline in air pollution. It also would generate US$15 billion for capital improvements to the city’s public transit system, including making stations accessible for passengers with disabilities and buying new electric buses and commuter rail and subway cars.

More than 75% of all trips into the central business district are made by public transit. The system has been plagued by breakdowns over the past decade. The Metropolitan Transit Authority recently adopted a $52 billion capital improvement program to update its network, some parts of which are more than 100 years old.

Graphic showing the shreas of people who get to lower and midtown Manhattan for work via car or public transit.
About 90% of the people who work in lower and midtown Manhattan get there by public transit, which will receive significant investments funded by congestion tolls. NY Traffic Mobility Review Board, CC BY-ND

Over several months of public hearings, the MTA heard both broad support for congestion pricing and thousands of requests for credits, discounts and exemptions, most of which were denied. The limited number of exemptions includes private commuter buses, school buses and city-owned vehicles, including emergency vehicles.

In addition, drivers who travel via Franklin D. Roosevelt Drive on Manhattan’s eastern edge, the West Side Highway on its western edge, or the Carey Tunnel between Brooklyn and Battery Park will not be charged if they do not enter any street in the Congestion Relief Zone. Drivers from the Bronx, Queens and Staten Island will be eligible for rebates and discounts on certain bridge tolls.

There were widespread complaints from New Yorkers in the outer boroughs of the Bronx, Brooklyn and Queens, and from car commuters who live outside of the city. New Jersey is suing the MTA, arguing among other things that the plan is unconstitutional because it burdens interstate commerce. This suit could delay the start of congestion pricing.

Nonetheless, the board adopted the plan with just one dissenting vote, from a representative of Nassau County on Long Island.

People hold signs reading 'Brooklyn Needs Buses' and 'Riders Need a Plan'
Transit advocates demonstrate in Brooklyn for better service in July 2017 during a period of mounting delays and breakdowns in New York’s subway system. AP Photo/Mary Altaffer

Starting the journey

Many questions will only be answered once the system starts up in June 2024, or later if it is delayed by lawsuits. Will toll prices be high enough to spur people to switch to another mode of transportation or combine trips, while still generating enough revenue for the MTA’s ambitious capital improvement program? How will toll revenue be spent? And how will commuters respond when they find that trains and subways initially are more crowded, before capital upgrades improve the system?

Some low-income and minority communities that already experience heavy traffic, such as the Bronx, could see increased congestion as drivers detour around the toll zone. To help mitigate some of these effects, the transit authority is planning to invest millions of dollars to reduce pollution in these environmental justice areas through steps such as installing air filters in schools, planting more trees and electrifying trucks at the massive Hunts Point Food Distribution Center in the Bronx.

No one likes to pay for something that was previously free. But freedom for car users has imposed health and economic costs on millions of New Yorkers for many years. Congestion charges do raise equity issues, but only 5% percent of people who commute into the central business district travel by car, and most of those drivers have relatively high incomes.

The MTA may need to adjust tolls, the zone’s borders or other aspects of the plan. But if New York’s experiment succeeds, it could provide a model and valuable insights for other traffic-clogged U.S. cities.


This article is republished from The Conversation under a Creative Commons license. Read the original article and see more than 250 UMBC articles available in The Conversation.

Could a telescope ever see the beginning of time? An astronomer explains

an image that says Curious Kids

By Adi Foord, Assistant Professor of Astronomy and Astrophysics, UMBC

Curious Kids is a series for children of all ages. If you have a question you’d like an expert to answer, send it to curiouskidsus@theconversation.com.


If the James Webb telescope was 10 times more powerful, could we see the beginning of time? – Sam H., age 12, Prosper, Texas


The James Webb Space Telescope, or JWST for short, is one of the most advanced telescopes ever built. Planning for JWST began over 25 years ago, and construction efforts spanned over a decade. It was launched into space on Dec. 25, 2021, and within a month arrived at its final destination: 930,000 miles away from Earth. Its location in space allows it a relatively unobstructed view of the universe.

The telescope design was a global effort, led by NASA and intended to push the boundaries of astronomical observation with revolutionary engineering. Its mirror is massive – about 21 feet (6.5 meters) in diameter. That’s nearly three times the size of the Hubble Space Telescope, which launched in 1990 and is still working today.

It’s a telescope’s mirror that allows it to collect light. JWST’s is so big that it can “see” the faintest and farthest galaxies and stars in the universe. Its state-of-the-art instruments can reveal information about the composition, temperature and motion of these distant cosmic objects.

Against the blackness of space, the golden mirrors of the telescope are prominent.
This illustration of the front view of the James Webb Space Telescope shows its sun shield and golden mirrors. NASA/ESA/CSA/Northrop Grumman

As an astrophysicist, I’m continually looking back in time to see what stars, galaxies and supermassive black holes looked like when their light began its journey toward Earth, and I’m using that information to better understand their growth and evolution. For me, and for thousands of space scientists, the James Webb Space Telescope is a window to that unknown universe.

Just how far back can JWST peer into the cosmos and into the past? About 13.5 billion years.

Time travel

A diagram that shows how far back the James Webb Space Telescope can see.
The James Webb Space Telescope can see back 13.5 billion years – back to when the first stars and galaxies began to form. STScI

A telescope does not show stars, galaxies and exoplanets as they are right now. Instead, astronomers are catching a glimpse of how they were in the past. It takes time for light to travel across space and reach our telescopes. In essence, that means a look into space is also a trip back in time.

This is even true for objects that are quite close to us. The light you see from the Sun left it about 8 minutes, 20 seconds earlier. That’s how long it takes for the Sun’s light to travel to Earth.

You can easily do the math on this. All light – whether sunlight, a flashlight or a light bulb in your house – travels at 186,000 miles (almost 300,000 kilometers) per second. That’s just over 11 million miles (about 18 million kilometers) per minute. The Sun is about 93 million miles (150 million kilometers) from Earth. That comes out to about 8 minutes, 20 seconds.

But the farther away something is, the longer its light takes to reach us. That’s why the light we see from Proxima Centauri, the closest star to us aside from our Sun, is 4 years old; that is, it’s about 25 trillion miles (approximately 40 trillion kilometers) away from Earth, so that light takes just over four years to reach us. Or, as scientists like to say, four light years.

Most recently, JWST observed Earendel, one of the farthest stars ever detected. The light that JWST sees from Earendel is about 12.9 billion years old.

The James Webb Space Telescope is looking much farther back in time than previously possible with other telescopes, such as the Hubble Space Telescope. For example, although Hubble can see objects 60,000 times fainter than the human eye is able, the JWST can see objects almost nine times fainter than even Hubble can.

The Big Bang

But is it possible to see back to the beginning of time?

The Big Bang is a term used to define the beginning of our universe as we know it. Scientists believe it occurred about 13.8 billion years ago. It is the most widely accepted theory among physicists to explain the history of our universe.

The name is a bit misleading, however, because it suggests that some sort of explosion, like fireworks, created the universe. The Big Bang more closely represents the appearance of rapidly expanding space everywhere in the universe. The environment immediately after the Big Bang was similar to a cosmic fog that covered the universe, making it hard for light to travel beyond it. Eventually, galaxies, stars and planets started to grow.

That’s why this era in the universe is called the “cosmic dark ages.” As the universe continued to expand, the cosmic fog began to rise, and light was eventually able to travel freely through space. In fact, a few satellites have observed the light left by the Big Bang, about 380,000 years after it occurred. These telescopes were built to detect the splotchy leftover glow from the Big Bang, whose light can be tracked in the microwave band.

However, even 380,000 years after the Big Bang, there were no stars and galaxies. The universe was still a very dark place. The cosmic dark ages wouldn’t end until a few hundred million years later, when the first stars and galaxies began to form.

Clouds of red, pink and white gas and dust highlight this starscape.
This is a JWST image of NGC 604, a star-forming region about 2.7 million light years from Earth. NASA/ESA/CSA/STScI

The James Webb Space Telescope was not designed to observe as far back as the Big Bang, but instead to see the period when the first objects in the universe began to form and emit light. Before this time period, there is little light for the James Webb Space Telescope to observe, given the conditions of the early universe and the lack of galaxies and stars.

Peering back to the time period close to the Big Bang is not simply a matter of having a larger mirror – astronomers have already done it using other satellites that observe microwave emission from very soon after the Big Bang. So, the James Webb Space Telescope observing the universe a few hundred million years after the Big Bang isn’t a limitation of the telescope. Rather, that’s actually the telescope’s mission. It’s a reflection of where in the universe we expect the first light from stars and galaxies to emerge.

By studying ancient galaxies, scientists hope to understand the unique conditions of the early universe and gain insight into the processes that helped them flourish. That includes the evolution of supermassive black holes, the life cycle of stars, and what exoplanets – worlds beyond our solar system – are made of.


Adi Foord, Assistant Professor of Astronomy and Astrophysics, UMBC

This article is republished from The Conversation under a Creative Commons license. Read the original article.

Meet a Retriever—Sean McWilliams, M.S. ’16, Alumni Association Alumni Awards Committee Co-Chair

Meet Sean McWilliams, M.S. ‘16, applied mathematics. Sean is a portfolio manager at T. Rowe Price and an active member of the UMBC Alumni Association Board of Directors, serving as one of the co-chairs of the Alumni Awards committee. Sean was a non-traditional student who found his way to UMBC as a part-time graduate student while working full-time at T. Rowe Price. Take it away, Sean!

Q: What is your WHY? What brought you to UMBC?

A: After working for a few years I deeply missed the academic rigor of studying mathematics. I wanted to study more math at the graduate level, mostly out of personal interest, while I continued to work. I also wanted to take the same classes that the full-time graduate students would be taking. UMBC’s applied mathematics program was the only one that offered classes with the level of rigor I was seeking that would work with my schedule.

Q: What’s your favorite part of Retriever Nation?

A: I love meeting new alumni and learning about how UMBC helped launch their personal and professional successes after graduation.

Members of the Alumni Association Board of Directors with UMBC's Director of Alumni Engagement, Stanyell Odom.
Members of the Alumni Association Board of Directors with UMBC’s Director of Alumni Engagement, Stanyell Odom. Pictured left to right: Sean McWilliams, M.S. ’16, Zozscha Bomhardt ’93, Brian Frazee ’11, M.P.P. ’12., Kevin Yang ’07, Bobby Lubaszewski ’10, M.P.S. ’23, and Stanyell Odom.

Q. What is your HOW? Where did you find support?

A: I enjoyed all of my classes at UMBC and found the professors to be almost universally excellent and passionate teachers. I had especially memorable experiences taking partial differential equations with Kathleen Hoffman, stochastic processes with Muruhan Rathinam, and applied analysis with Animikh Biswas.

Sean McWilliams at the podium during Alumni Awards 2022.

Q: What drives you to support UMBC?

A: I specifically donate to support the Alumni Endowed Scholarship Fund. The scholarships this fund supports often have a direct and immediate impact on the recipients’ ability to complete their degrees. It’s gratifying to know my donations help support the fund’s ability to continue to deliver that impact.

About the Alumni Association Board of Directors

UMBC’s Alumni Association is a non-dues-paying organization and is led by a volunteer Board of Directors—volunteer graduates, like Sean, who support advancing the mission and vision of the association and, by extension, UMBC, through their visibility as alumni leaders and active participants in the ongoing work of the board and its committees.

(Pictured left: Sean McWilliams, Alumni Awards co-chair, at the podium during Alumni Awards 2022.)

About the Alumni Awards

Extraordinary UMBC alumni, faculty, and staff are making a difference in the world, and the UMBC Alumni Association Board of Directors holds an annual celebration of their accomplishments. Past winners have included a U.S. Surgeon General, a Lucasfilm sound editor, the New Yorker‘s social media director, chief judges, teachers, and scientists advancing fields such as medicine, chemical engineering, physics, and biology. We also honor outstanding UMBC faculty and staff members for their role in guiding and nurturing students.

Alumni Awards 2022 group photo. Alumni Awards committee members with UMBC President Valerie Sheares Ashby and Alumni Association President Brian Frazee ’11, M.P.P. ’12.
Alumni Awards 2022 group photo. Alumni Awards committee members with UMBC President Valerie Sheares Ashby and Alumni Association President Brian Frazee ’11, M.P.P. ’12.

Five types of awards are given: Outstanding Graduate, Distinguished Service, Rising Star, Outstanding Faculty, and Outstanding Staff.

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UMBC’s greatest strength is its people. When people meet Retrievers and hear about the passion they bring, the relationships they create, the ways they support each other, and the commitment they have to inclusive excellence, they truly get a sense of our community. That’s what “Meet a Retriever” is all about.

Learn more about how UMBC can help you achieve your goals.