Physics
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AnimalsHow do elephants eat cereal? With a pinch
Elephant trunks can grab everything from whole trees to cereal bits. To pick up fine grains, they press, then pinch.
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ChemistrySome plastics learn to repair themselves
A new material can fix its own scratches and small cracks. One day, it also may make self-healing paints and plastics possible.
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PhysicsHarry Potter can apparate. Can you?
In the world of Harry Potter, wizards apparate and disapparate with ease. How would that work in the non-magical world? Physics has some answers.
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PhysicsScientists vote to fix the world’s weight-loss problem
Scientists will soon vote to change the definition of the kilogram. The event shows how much we depend on a tiny metal cylinder locked in an underground vault in France.
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ChemistrySuper-water-repellent surfaces can generate energy
Scientists knew they could get power by running salt water over an electrically charged surface. But making that surface super-water-repellent boosts that energy production, new data show.
By Ilima Loomis -
FossilsT. rex pulverized bones with an incredible amount of force
Tyrannosaurus rex’s powerful bite and remarkably strong teeth helped the dinosaur crush bones.
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PhysicsScientists Say: Multiverse
The multiverse is an idea that there are many universes out there, including the one we live in. Each universe has an alternate reality.
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PhysicsOnly a small fraction of space has been searched for aliens
In their hunt for extraterrestrial intelligence, SETI searches have only scouted an area the equivalent of a hot tub out of Earth’s oceans, a new calculation indicates.
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BrainTeens’ cell phone use linked to memory problems
A new study suggests teens who get more exposure to cell-phone radiation — and hold their phones up to their right ear — do worse on one type of memory test.
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ClimateHurricane Michael slams into Florida, then speeds north
The 2018 hurricane season just brought Michael, another rapidly strengthening hurricane, to the U.S. coast. This one hit land with surprising power.
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Materials ScienceSoft robots get their power from the skin they’re in
A flexible electronic “skin” embedded with air pouches or coils can wrap around inanimate objects, turning them into handy robots.
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PhysicsDoctor Who’s TARDIS is bigger on the inside — but how?
The TARDIS looks like a old police box on the outside. But on the inside, it’s got plenty of space. How does that work? It just takes a wormhole and a tesseract or two.