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, ...
The average American refrigerator generates a magnetic field of one-half Tesla. The world-record breaking magnet developed by the High Magnetic Field Laboratory in Dresden generates nearly 200 times ...
If there’s something more tedious than winding coils, we’re not sure what it is — possibly rolling and wrapping coins; that’s really a bother. But luckily, just like there are mechanical ways to count ...
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