All Stories
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Health & MedicineWanted: ‘Smart’ cleaners
Active surfaces will — on their own — help remove everything from insects and germs to poisons.
By Roberta Kwok -
ChemistryA penny for your health?
Copper is best known as the reddish metal used to make pennies, electrical wiring and weather vanes. But two teen scientists think copper should find its way into medical settings as well. Their data suggest the metal — in bandages or on surfaces — could play a major role in killing some types of bacteria responsible for serious infections.
By Sid Perkins -
Health & MedicineKiller-flu update
Infection that recently developed in China shows signs of being easy to spread and hard to kill.
By Janet Raloff -
PhysicsBlack hole mysteries
Scientists are just getting to know the black holes that help anchor our cosmos.
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ChemistryNew bag keeps food fresh longer
Invention harnesses oxygen-trapping power of iron.
By Sid Perkins -
ChemistryA warming life jacket
New liner contains a substance that helps fight heat loss in chilly water.
By Sid Perkins -
PhysicsSmile! Dimples boost your mileage
Trucks covered with tiny indentations, like those on golf balls, experience less friction.
By Sid Perkins -
TechBetter chow yields more milk
A more nutritious form of corn for dairy cows boosts farm profits, teen investigator finds.
By Sid Perkins -
Health & MedicineFuzzy future
Kids may suffer impaired vision from spending too little time outdoors, studies suggest.
By Nathan Seppa -
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TechBuilding with moon rocks
Working on the moon with lunar soil and grit could prove easier, more efficient and less costly than using earthly materials.
By Sid Perkins -
ClimateMajor twister hits Oklahoma
Its speed, which largely determines the damage it causes, is still unknown.
By Janet Raloff