Eric Sembrat's Test Bonanza


The Physics and Materials Science of Superheroes

In 2001 James Kakalios created a Freshman Seminar class at the University of Minnesota entitled: "Everything I Know About Science I Learned from Reading Comic Books." This is a real physics class, that covers topics from Isaac Newton to the transistor, but there’s not an inclined plane or pulley in sight.  Rather, ALL the examples come from superhero comic books, and as much as possible, those cases where the superheroes get their physics right!

Unexpected Electronic Transport Phenomena in Composite Amorphous/nanocrystalline Thin Films

Composite materials consisting of nanocrystalline semiconductors embedded within a bulk amorphous semiconductor or an insulator have attracted interest for applications ranging from photovoltaics, thermoelectrics, thin film transistors, particle detectors and electroluminescent devices.  These materials combine the best of both worlds – the thin film large area advantages of disordered semiconductors with the superior opto-electronic properties of crystals, and often display electronic properties not observed in either material separately.

Non-equilibrium Statistical Mechanics: a growing frontier of "pure and applied" theoretical physics

Non-equilibrium Statistical Mechanics: a growing frontier of "pure and applied" theoretical physics Founded over a century ago, statistical mechanics for systems in thermal equilibrium has been so successful that, nowadays, it forms part of our physics core curriculum. On the other hand, most of "real life" phenomena occur under non-equilibrium conditions. Unfortunately, statistical mechanics for such systems is far from being well established. The goal of understanding complex collective behavior from simple microscopic rules (for how the system evolves, say) remains elusive.

Ant vs. Colony: Who makes the calls?

Cooperative groups often exhibit capabilities that exceed those of their individual members. On the other hand, collective actions may wash out crucial knowledge held out by individual group members. This talk will present the conflict between a group and the individuals that comprise it in the context of cooperative load retrieval by longhorn crazy ants. This behavior relies on the group to exert a large enough force to move the large load but also on the navigational capabilities of individual insects. 

Driving the formation of the RbCs dimer by a laser pulse: A nonlinear-dynamics approach

We study the formation of the RbCs molecule by an intense laser pulse using nonlinear dynamics. The system is modeled by a two-degree-of-freedom rovibrational Hamiltonian, which includes the ground electronic potential energy curve of the diatomic molecule and the interaction of the molecular polarizability with the electric field of the laser. As the laser intensity increases, we observe that the formation probability first increases and then decreases after reaching a maximum.

Prey capture, chases and flocks: Biomechanics and behavior of free flying birds

Recent advances in camera sensor technology and the maturation of machine vision analysis pipelines now allow for recording bird flight trajectories in the field with high spatial and temporal precision, informing analyses of flight biomechanics and intraspecific interactions.

These include data on high speed, high-G maneuvers impossible to recreate in laboratory apparatus such as wind tunnels as well as simultaneous recordings of the position of > 1000 individuals in bird flocks.

Meet 2017 Spring Graduate Krishma Singal

Wednesday, May 3, 2017

The goal was to learn all she could about physics, and it’s mission accomplished for Krishma Singal. The graduate of Duluth High School in Duluth, Georgia, is getting her B.S. in Physics from Georgia Tech. Along the way, the award-winning soon-to-be alumna also learned more about herself, in particular her study habits, her South Asian heritage, and her ability to give complex scientific presentations to large audiences. Those same kinds of discoveries, she says, await new students.

What attracted you to Georgia Tech?

I knew I wanted to get involved in the sciences and that Georgia Tech was a fantastic technology school with lots of resources. Being a Georgia resident also encouraged me to look at in-state schools so that I could be eligible for the Hope and Zell Miller Scholarships.

My father recommended that I study physics, a subject that I really enjoyed in high school and one that is at the heart of many different fields. Georgia Tech seemed to be the perfect place to study physics while getting a glimpse into other disciplines.

How would you describe your life before enrolling in Georgia Tech?

Before Georgia Tech, I was just a regular high school student. I didn’t really need to put in much time for school, and I spent a lot of time with my friends. I tutored for a wide variety of classes. I also spent a lot of time with my family and helped take care of my younger brother.

In organizations and classes, I didn’t really try to leave my comfort zone. I stuck with my strengths. It wasn’t until I went to Georgia Tech that I was able to push my limits and try new things.

What is the most important thing you learned at Georgia Tech?

Georgia Tech taught me about working with others, standing up for myself, and taking charge of events and situations. I’ve learned that I can still be a strong, independent person while asking for help from others.

As a woman physicist, I am a minority in my major and on campus in general. I used to feel intimidated asking for help. However, my courses encouraged me to connect with classmates. I saw that there was no need for me to be perfect in order to gain respect. Realizing this fact gave me the courage to meet new people and join different organizations, like the Society of Women in Physics and India Club at Georgia Tech.

What surprised or disappointed you the most about Georgia Tech?

I was caught off-guard by how challenging Georgia Tech is. I knew that college would be more involved than high school. Yet I never expected to have to put in so much time and be so dedicated to my classes. I had to be organized and plan my schedule weeks in advance around big tests and assignments.

I was surprised by the diversity on campus. I was worried I’d have to constantly interact with a stereotypical kind of engineer or student, and that I wouldn’t connect well with people. Instead, I’ve met so many unique and interesting people from various backgrounds.

Which professor(s) or class(es) made a big impact on you?

A class that had a big impact on me was Dr. Shina Tan’s Honors Physics II class. This was my second physics class, and it was one of the hardest classes I’ve ever taken. The difficulty of the course forced us students to work together to understand the material. If not for this class and its difficulty, I probably would’ve changed my major.

Flavio Fenton, Deirdre Shoemaker, and Lee Hyunjeong Oh also had a huge impact on me.

Dr. Fenton, my research advisor for more than two years, taught me a lot about the research process. Because of his encouragement, I’ve presented my research in various settings, including the American Physical Society’s March 2016 meeting.

Dr. Shoemaker, the first female physicist I met at Georgia Tech, was my academic advisor during my first years at Tech. In such a male-dominated field, I was glad to meet a female physicist who was so positive and fun.

Professor Oh, my Korean teacher for two semesters, is one of the most encouraging professors I’ve ever met. I believe everyone deserves to take a course with an instructor as sweet and as motivating as Professor Oh.

What is your most vivid memory of Georgia Tech?

I have fond memories with my roommates, especially of the four of us sitting together in our living room watching movies and flipping through old photos on my laptop.

My work with India Club will stay with me forever. I’ll never forget the nights leading up to Holi Show, the biggest event we staged each year, where we had to design a giant foam backdrop covered with glitter and beautiful colors.

If you participated in experiential learning activities, what was the most valuable outcome of your experience?

I am currently working as an undergraduate research assistant in the CHAOS (Complex Heart Arrhythmias and other Oscillating Systems) Lab. I learned new coding languages and programs and built setups using 3D printers and laser cutters. Because of this lab, I’ve become more comfortable presenting my research to others. I’ve gained more confidence in myself as a researcher.

On the basis of your experience, what advice would you give to incoming freshmen at Georgia Tech?

Keep up with their courses. Reading in advance in the evenings helps a lot. Working with others helped me excel and improved my study skills and approaches to problems.

Find out what works best for you. What works for some people won’t work for everyone. Some students need to study late at night. Others work early in the morning. You need to explore and find your own niche.

Remain open. Georgia Tech is full of people from around the world – people who’ve completed internships, worked at companies, who are graduating late/early, and more. Everyone you meet can teach you something unique and provide a new perspective on the world.

What feedback would you give to Georgia Tech to improve the campus experience for future students?

Acknowledge that different students have different thresholds and have a lot going on outside of class. A lot of students are balancing schoolwork, jobs, friends, clubs, and other responsibilities, in addition to thinking about the future.

It would be nice if faculty and/or staff kept this in mind when planning courses, or even when considering students’ requests for extensions or help on assignments.

Where are you headed after graduation?

I want to continue my studies. Thankfully, the research experience, confidence, and leadership techniques I’ve gained at Tech will help me wherever I decide to pursue my Ph.D. 


Media Contact: 

Renay San Miguel
Communications Officer/Science Writer
College of Sciences



Krishma Singal is getting a B.S. in Physics from Georgia Tech, but she also took a crash course in exploring her own capacity to grow and in learning new things about herself. 


Krishma Singal is getting a B.S. in Physics from Georgia Tech, but she also took a crash course in exploring her own capacity to grow and in learning new things about herself. 



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