Physicists and biologists challenge a prevailing evolutionary theory that single-celled organisms can only evolve to become multicellular life forms if doing so increases their overall productivity.
“Rather than each cell producing what it needs, specialised cells need to be able to trade with each other. Previous work suggests that this only happens as long as the overall group’s productivity keeps increasing,” explains lead author David Yanni, PhD student at Georgia Institute of Technology, Atlanta, US.
“We can’t see the very first generations of stars,” said study co-author John Wise, an associate professor at the Center for Relativistic Astrophysics at Georgia Tech. “Therefore, it’s important to actually look at these living fossils from the early universe, because they have the fingerprints of the first stars all over them through the chemicals that were produced in the supernova from the first stars.”
This paper refined the current understanding of how fish navigate their underwater world could provide insights that can be applied to underwater robots, according to Science News. Robots are often designed with separate apparatus for movement and sensing, but, as Simon Sponberg, a biophysicist at the Georgia Tech, tells Science News, “biology puts sensors on everything.”
Luckily, a team of researchers from Georgia Tech's Center for Relativistic Astrophysics recently conducted simulations that show what the formation of the first stars looked like.
Physicist Elisabetta Matsumoto is an avid knitter and has been since taking up the hobby as a child. Matsumoto, now at the Georgia Institute of Technology in Atlanta, is teasing out the mathematical rules that dictate how stitches impart such unique properties to fabrics.
Around the coasts of the continents, where slopes sink down into the sea, tiny cages of ice called clathrates trap methane gas, preventing it from escaping and bubbling up into the atmosphere. Until now, the biological process behind how methane gas remains stable under the sea has been almost completely unknown. In a breakthrough study, a cross-disciplinary team of Georgia Tech researchers discovered a previously unknown class of bacterial proteins that play a crucial role in the formation and stability of methane clathrates.
A new theory allows researchers to create easy-to-solve mathematical models using cables, a previously challenging mathematical problem — offering key insights into the behavior of deformable solids, with applications spanning from engineering and biology to nanotechnology.
Atlanta Science Festival (ASF) presented by Delta Air Lines, the city’s ultimate celebration of all things science and one of the largest of its kind in the country, returns March 9-23. All ages can experience more than 100 interactive and educational events. The Exploration Expo, a giant science bash in Piedmont Park, returns as the grand finale of the Festival. The Festival will kickstart with the Science and Engineering Day at Georgia Tech.
Scientists have been trying to build snakelike, limbless robots for decades. These robots could come in handy in search-and-rescue situations, where they could navigate collapsed buildings to find and assist survivors. Georgia Tech researchers Tianyu Wang, a robotics Ph.D.
Are our bodies solid or liquid? This question begins the exploration of a study led by Zeb Rocklin, an assistant professor in the School of Physics at Georgia Tech, that blurs the lines between solid and liquid states by examining materials that exhibit properties of both.
