Permanent magnets sit at the heart of the green economy, from wind turbines and electric vehicles to smartphones and industrial robots. For decades, the strongest versions have depended on rare-earth ...
But powerful magnets are usually large and energy hungry. Chukun Gao at the Swiss Federal Institute of Technology in Zurich ...
People have warned for years that magnets can wipe out hard drives, but the real answer is a lot less dramatic than that old ...
If you drop strong magnets onto a plate of copper, something remarkable happens: the magnets slow down before hitting the surface and appear to levitate slightly, like the copper is another magnet, ...
If you want a strong magnet, the obvious answer is to buy one. However, for a variety of reasons, you might want to combine several smaller magnets. There are a few ways to do this, but the Halbach ...
At some point, you've probably heard the stern warning: Never put magnets near your electronics! It's advice so ingrained in tech culture that it feels like a law of physics. But is it true? Was it ...
HOUSTON – (Feb. 15, 2022) – Phonons are collective atomic vibrations, or quasiparticles, that act as the main heat carriers in a crystal lattice. Under certain circumstances, their properties can be ...