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Physics
Scientists Say: Gamma ray
Lightning bolts, nuclear explosions, colliding stars and black holes all throw off this high-energy type of light.
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Lightning bolts, nuclear explosions, colliding stars and black holes all throw off this high-energy type of light.
Lightning, stars, supermassive black holes and more give off radio waves.
Human ears don’t work well in the water. A mermaid would need marine creature features to talk to and understand her aquatic friends.
In a new experiment with bacteria, a lone photon sparked the process of turning light to chemical energy.
Sending a sound upwind, against the flow of air, actually makes the sound louder — only it doesn’t sound that way to the person making the noise.
With layers that work like polar bears’ skin and fur, a material absorbs light and keeps it from escaping.
A burst of light and a cloud of dust are signs that a distant star swallowed a giant planet.
The inner workings of microscopes, telescopes, eyeglasses and other lens-based devices rely on two important laws of optics.
The rainbow palette and cooling powers of new plant-based films comes from their microscopic surface patterns of tiny crystals.
At Regeneron ISEF, three teens debuted an infrared system to detect honeybees carrying mites. It can show beekeepers when a colony needs to be treated.