This is Terbium Gallium Garnet, an exotic material grown for high-end crystal tech. It's one of the only gems you can pick up with a magnet. And that's not even the weirdest thing about it. When it's exposed to a magnetic field, any light that passes through it gets rotated. You can see the effect by putting one between two polarizing filters and t
This is the reconfigurable magnetic slime robot, and it really looks like venom. It was created by a research team at the Chinese University of Hong Kong. The idea behind it was to make a soft body that can be controlled with magnets and can move through human organs to remove objects safely. The robot is made from a non-Newtonian fluid mixed with
Earth's magnetic shield has lost about 30% of its strength in just 3,000 years, and scientists think this might be the start of something big, a complete flip of our magnetic poles. Here's what's happening. Deep inside Earth, churning liquid metal creates our magnetic field, protecting us from harmful space radiation. But this field isn't stable.
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