“The very reason that we have magnetism in our everyday lives is because of the strength of electron exchange interactions,” said study coauthor Ataç İmamoğlu, a physicist also at the Institute for Quantum Electronics. However, as Nagaoka theorized in the 1960s, exchange interactions may not be the only way to make a material magnetic. Nagaoka … Read more
-copy.jpg)
That was a surprise—and a possible indication that something crucial was missing in those models: magnetism. Stellar Symmetry Last year, Gang Li, an asteroseismologist now at KU Leuven, went digging through Kepler’s giants. He was searching for a mixed-mode signal that recorded the magnetic field in the core of a red giant. “Astonishingly, I actually found … Read more
This also works the other way: Incoming electromagnetic waves will get canceled by the moving charges in the Faraday cage. Your phone won’t know that it’s getting a text message or call. Let’s focus for a minute on why the cage’s materials are important. A Faraday cage is made from an electrical conductor, metals like … Read more