Experts in the News

This story does indeed sing the praises of the humble honeybee, focusing on special Atlanta projects designed to study and provide homes for our four-winged pollen pals. One of those is the Georgia Tech Urban Honeybee Project, located on the roof of Clough Undergraduate Learning Center. That's where Jennifer Leavey, program director and senior academic professional in the School of Biological Sciences, rules the hives. The story also mentions a recent study from School of Biological Sciences associate professor David Hu, who used the Project to research honeybee hairs and the role they play in pollen collection.

An international team has discovered a way to produce graphene from ethene, also called ethylene, through a high-temperature step-by-step process. The team includes two Georgia Tech researchers who are members of the School of Physics' Center for Computational Materials Science: Bokwon Yoon, a research scientist, and professor Uzi Landman, who is also CCMS director. 

It's Vice's turn to have fun with a new study on mammal defecation provided by School of Biological Sciences associate professor David L. Hu's lab. The study found that despite a wide range of sizes in bodies and feces, most healthy mammals poop at the same rate. There is one telling behind-the-scenes detail: study co-author Patricia Yang says her team promised other graduate students sharing the lab not to bring their animal dropping samples from the Atlanta Zoo into the lab until after 5 p.m. because of the smell. Hu is also an adjunct associate professor in the School of Physics and an associate professor in the George W. Woodruff School of Mechanical Engineering. Yang is a Ph.D. student in the Woodruff School of Mechanical Engineering. 

Everyone poops, and it takes them about the same amount of time. A new study of the hydrodynamics of defecation finds that all mammals take 12 seconds on average to relieve themselves, no matter how large or small the animal. The research, published in Soft Matter, reveals that the soft matter coming out of the hind ends of elephants, pandas, warthogs and dogs slides out of the rectum on a layer of mucus that keeps toilet time to a minimum. “The smell of body waste attracts predators, which is dangerous for animals. If they stay longer doing their thing, they’re exposing themselves and risking being discovered,” says Patricia Yang, a mechanical engineer at the Georgia Institute of Technology in Atlanta. Yang, a doctoral student in the Woodruff School of Mechanical Engineering, worked on the study with David Hu, associate professor in the School of Biological Sciences and an adjunct associate professor in the School of Physics.

Imagine a liquid that could move on its own without human effort or the pull of gravity. You could put it in a container flat on a table, not touch it in any way, and it would still flow. As reported in Science, researchers have taken the first step in creating a self-propelling liquid. The finding offers the promise of developing an entirely new class of fluids that can flow without human or mechanical effort. School of Physics Associate Professor Alberto Fernandez-Nieves and postdoctoral fellow Ya-Wen Chang co-authored the study, which was led by collaborators at Brandeis University.