Chemistry
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AnimalsRudolph’s red nose could glow through bioluminescence
Simple chemistry could give the reindeer his iconic red snout. But physics would make it look different colors to anyone who spied Rudolph from the ground.
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MicrobesAnts are the secret ingredient to this tasty yogurt
The traditional yogurt-making technique was once popular in parts of Europe and Asia. But don’t try this at home!
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ChemistryLet’s learn about surprising uses for human waste
Around the world, scientists are investigating ways to turn poop and pee into fertilizer, fuel and construction materials.
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ChemistryNew materials yank ‘forever chemicals’ from water
Materials known as metal-organic frameworks, or MOFs, trap some PFAS fast — and can be reused again and again.
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ChemistryStructures that work like Hermione’s magic handbag land a chemistry Nobel
Richard Robson, Susumu Kitagawa and Omar Yaghi developed these metal-organic frameworks, which can trap pollutants, collect water from air and more.
By Meghan Rosen -
PhysicsNew theory may at last explain a swamp’s ghostly will-o’-the-wisps
Chemists have spotted tiny zaps of electricity moving between “swamp-gas” bubbles. Could they ignite methane gas to glow as dancing blue flames?
By Laura Allen -
SpaceAnalyze This: Ice around baby stars may hint at origins of Earth’s water
Scientists have now gotten a good look at the ice around a baby star. It might help them unravel the origins of the water needed for life on Earth.
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PhysicsCould we ever build the tech to shrink ourselves?
The atoms that make us up couldn’t be shrunk or smashed closer together — at least, not without catastrophic consequences.
By Alex Viveros -
ChemistryScientists Say: Element
The number of neutrons and electrons can vary in atoms of the same element. The number of protons alone sets each of these substances apart.
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PhysicsZap! Peeling off tape can spark chemical reactions in the air
Ripping tape off a roll triggers flashes of lightning. Harnessing these micro-sparks might one day lead to greener chemistry.
By Laura Allen -
ChemistryUncover leaves’ hidden colors in this science activity
Let’s use a technique called paper chromatography to separate the pigments lurking in tree leaves.
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EnvironmentWatch out: Hail can get really big!
New data from hailstones suggest most of these icy chunks may not form the way scientists long thought.