Environment
Legos could last a disturbingly long time in the ocean
By looking at toys washed up on beaches, scientists have estimated how long it takes hard plastics to break down in the oceans. And it’s a long time.
HS-ETS1-1
Analyze a major global challenge to specify qualitative and quantitative criteria and constraints for solutions that account for societal needs and wants.
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Materials ScienceSilk can be molded into strong medical implants
Freeze-dried and powdered silk has a long shelf life. It also is cheap to ship and can be molded into sturdy medical implants.
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EnvironmentDecades-long project is linking our health to the environment
Started in 1959, this California study is one of the oldest ongoing research projects in the world.
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BrainDo you sleep enough to banish unpleasant moods?
A large, long-term study in kids has linked getting too little shuteye with mood and behavior problems.
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Health & MedicineSearch speeds up for vaccine against the new coronavirus
Scientists are investigating unusual ways to make drugs to prevent viral infections. One may even be able to treat already sick people.
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Materials ScienceThe future of crystal-based solar energy just got brighter
Researchers have upped the efficiency of layered solar cells that could be printed or painted onto surfaces. Now they are working to make them more rugged.
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Climate5 things to know about the climate-saving benefits of tree planting
A recent analysis of the benefits of massive efforts to plant more trees triggered a firestorm of controversy.
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PhysicsTests challenge whether centuries-old violins really are the best ever
Some centuries-old Italian violins are reputed to be the best ever made. Scientists tested that. Their data now show new instruments can sound at least as good — and sometimes better.