How the physics of champagne bubbles may help address the world’s future energy needs

Most power stations rely on boilers to convert water into steam, but the phase transition involved is highly complex. During the phase transition, no one is exactly sure what’s occurring inside the boiler — especially how bubbles form. So a team of researchers in Japan set out to find an answer and in the Journal of Chemical Physics, they describe how they were able to simulate bubble nucleation from the molecular level. —> Read More Here

Genetic ancestry of different ethnic groups varies across the United States

The United States is a melting pot of different racial and ethnic groups, but it has not been clear how the genetic ancestry of these populations varies across different geographic regions. In a landmark study published by Dec. 18 in the American Journal of Human Genetics, researchers analyzed the genomes of more than 160,000 African-Americans, Latinos, and European-Americans, providing novel insights into the subtle differences in genetic ancestry across the United States. —> Read More Here

Man Successfuly Controls 2 Prosthetic Arms With Just His Thoughts

A Colorado man can now control two prosthetic arms with his mind.

Les Baugh lost both his arms in an electrical accident 40 years ago. But with the help Johns Hopkins University’s Applied Physics Laboratory and DARPA (Defense Advanced Research Projects Agency), he’s able to control a set of Modular Prosthetic Limbs with his nerves. All he has to do is think about moving his arms, and they move.

Nothing is permanently attached to him; Baugh wears what is called a “socket,” which connects the prosthetics to his body. The researchers measured the way his muscles and nerves react when Baugh thinks about moving his arms. Then, when he thinks about moving his arms and hands in a certain way, the prosthetics move.

Baugh is the first bilateral shoulder-level amputee to wear two Modular Prosthetic Limbs at once, according to the researchers. He’s spending a lot of time practicing different tasks.

“Maybe I’ll be able to — for once — be able to put change in a pop machine and get the pop out of it,” Baugh said in a video about the breakthrough. “Simple things like that that most people never think of.” He can only —> Read More Here

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