Motion and Stability: Forces and Interactions
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TechNanobots can now enter brain cells to spy on what they’re doing
Fleets of advanced versions may one day be able to detect disease and then go about surgically treating it — without ever opening the skull.
By Nikk Ogasa -
Materials ScienceMade from fungi, this vegan leather can self-heal holes or rips
If made under gentle conditions, leather formed from the “roots” of mushrooms can retain the ability to regrow and repair minor damage.
By Jude Coleman -
TechNew device can harvest clean energy from humid air anywhere
Unlike solar power, this new source of electricity is available day or night.
By Laura Allen -
Health & MedicineStem cells can help build lab-grown organs that mimic real life
Making such organoids with 3-D printing and other tech can help researchers learn more about many troubling and potentially deadly disorders.
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TechHigh-tech solar ‘leaves’ create green fuels from the sun
Chemists make a liquid alternative to fossil fuels from carbon dioxide, water and the sun. Their trick? They use a new type of artificial leaf.
By Laura Allen -
TechNew thermal ‘cloak’ keeps spaces from getting too hot or too cold
A prototype fabric could help keep cars, buildings and other spaces cooler during heat waves while also reducing greenhouse-gas emissions.
By Skyler Ware -
Materials ScienceThis house is partly made of recycled diapers
After being washed, dried, sanitized and shredded, used diapers were mixed with other materials to make a strong concrete.
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Materials ScienceAnalyze This: A new fabric mimics polar bears’ pelts for warmth
With layers that work like polar bears’ skin and fur, a material absorbs light and keeps it from escaping.
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TechNanocrystal ‘painted’ films may someday help relieve summer heat
The rainbow palette and cooling powers of new plant-based films comes from their microscopic surface patterns of tiny crystals.
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TechA new solar-powered gel purifies water in a flash
The unusual, fruit-inspired structure of this material provides quick filtration that could satisfy people's daily water needs.
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TechMagnetic 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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PhysicsScientists Say: Magnetism
Magnetism is an aspect of one of the four fundamental forces of nature: electromagnetism.