Physics
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PhysicsPhysicists foil classic oobleck science trick
Cornstarch and water — best known as oobleck — solidifies upon impact. Researchers used a new technique to make it stay liquid.
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SpaceScientists Say: Spaghettification
Black holes cram a lot of mass into a small area. When another object gets close, the black hole’s gravity can stretch it into a noodle-like strand.
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PhysicsScientists Say: Momentum
This word describes a property of a moving object based on its mass and the direction and speed of its motion.
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PhysicsLet’s learn about bubbles
Bubbles are a great way to while away a beautiful summer day. Knowing a bit of science can help you blow the biggest and the best bubbles.
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EarthDid rain put the Kilauea volcano’s lava-making into overdrive?
Scientists share strongly conflicting opinions about why Hawaii’s Kilauea volcano spewed an overabundance of lava in 2018.
By Megan Sever -
AnimalsMinecraft’s big bees don’t exist, but giant insects once did
Big bees buzz in Minecraft. In our world, blocky bees might starve and be stuck on the ground. Yet long ago, giant insects did roam our planet.
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PhysicsScience offers recipes for homemade coronavirus masks
New studies provide data on what types of mask materials protect best against the virus that causes COVID-19. They also point to the value of a really snug fit.
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Materials ScienceMicro-barbs could make shots less painful
A new type of microneedle design might take the sting out of shots and stick to the skin better than other approaches.
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EarthLet’s learn about earthquakes
Dozens of quakes happen every day, but most aren’t big enough for people to notice.
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Materials ScienceThis ‘living’ concrete slurps up a greenhouse gas
Microbes help harden a mix of sand and gelatin into a living concrete that could interact with people and the environment in great new ways.
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PhysicsExplainer: Rainbows, fogbows and their eerie cousins
Light shining through a water droplet can make more than just a rainbow. A range of other colorful arcs also can develop.
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AnimalsScientists Say: Echolocation
This word describes a method that some animals use to sense their environments by making sounds and listening for their echoes.