A choreography of swimming, walking and rolling could help future rovers, built by Daniel Goldman's lab, avoid getting stuck in loose soil on the moon or Mars.
In a study published in Heart Rhythm on May 28, researchers led by Favio Fenton at Georgia Institute of Technology detailed how the drug affects electrical signaling in the heart of rabbits and guinea pig, and contributes to abnormal heart rhythms; these animals serve as model for understanding heart issues in humans.
The malaria drug hydroxychloroquine, which has been promoted as a potential treatment for Covid-19, is known to have potentially serious effects on heart rhythms. Now, corresponding author Flavio Fenton and a team of researchers have used an optical mapping system to observe exactly how the drug creates serious disturbances in the electrical signals that govern heartbeat.
Georgia Tech physicist Jennifer Rieser, who studies snake slithering, but was not involved in this new study, tells NPR that the research is a “cool” finding. The paper provides evidence that the way the snake moves in the air "actually seems to have a pretty important consequence for their movement,” she says. Related coverage: NPR.
Far outside our solar system and out past the distant reachers of our galaxy—in the vast nothingness of space—the distance between gas and dust particles grows, limiting their ability to transfer heat. There may be pockets of the universe where temperatures drop to 1 Kelvin above absolute zero, astronomer Jim Sowell of the Georgia Institute of Technology notes, but so far, the closest measurement to absolute zero has only been observed in laboratories here on Earth.
"We performed simulations of black-hole collisions using supercomputers and then compared the rapidly changing shape of the remnant black hole to the gravitational waves it emits." Christopher Evans, co-author and graduate student from the Georgia Institute of Technology, said. Read more: Ars Technica Futurism
It was a long and storied path for Dr. James “Jim” Sowell to get the 20-inch, Italian Officina Stellare telescope installed on the roof of the Howey Physics Building. But he succeeded, and today during Public Nights, young stargazers not only have access to Georgia Tech’s Observatory, they’re also learning about the solar system, stars, galaxies, and the universe, as well as astro-particle, electromagnetic, gravitational, and stellar astrophysics.
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.”
