
Tech
Magnetic fields melt and re-form new shape-shifting devices
Miniature machines made of gallium and magnetic particles can switch from solid to liquid and back.
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Miniature machines made of gallium and magnetic particles can switch from solid to liquid and back.
A pole is either of two opposite ends of a molecule, magnet, battery, planet or other object.
When an object experiences a force, its change in motion — or acceleration — depends on its mass.
On TV, people in space walk around like they’re on Earth. How can science give real astronauts artificial gravity? Spin right round, baby.
Game Boy revolutionized the gaming industry. A newer version could help slow the rate of climate change.
Because lithium-ion batteries power modern life, they need to store a lot of energy. Now scientists are focusing on making them safer.
A nine-year survey reveals where and when the most energetic lightning strikes — and it’s not what scientists expected.
Both batteries and capacitors can power electronic devices. Each, however, has different properties which may provide benefits — or limitations.
Radio waves from a faraway exoplanet could signal intense lightning storms there.
Electric eels are fascinating animals. Their powerful zaps can act like a radar system, trick fish into revealing their location and then freeze their prey’s movements.