Life
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ChemistryWhy onions make us cry
Researchers add another piece to the molecular puzzle biochemists have tried to solve for decades — why onions can make our eyes tear up.
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AnimalsScientists Say: Dung
This word is used to refer to animal poop. You know, manure. Crap. Feces.
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AnimalsCool Jobs: Puzzling over proteins to study life and death
Scientists are using proteins to understand dinosaur family trees, to fight malnutrition with a peanut-butter mix in Africa and to make “Google maps” of human cells.
By Bryn Nelson -
GeneticsGenes may predict how well the flu vaccine will work in young people
The activity of nine genes predicted how well people 35 and under would respond to the flu vaccine.
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EarthExpedition finds South Pacific plastic patch bigger than India
A giant, floating ‘garbage patch’ in the South Pacific off Chile’s coast is mostly tiny bits of plastic.
By Ilima Loomis -
BrainSpying on brains in action
New tools let scientists see inside the brain and nervous system as their research subjects move around.
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AnimalsLight pollution can foil plant-insect hookups
An experiment in remote European meadows shows that light pollution at night can affect the pollination of flowers — even into sunlight hours.
By Susan Milius -
Health & MedicineThe five-second rule: Designing an experiment
Is it true that food is still clean if it’s picked up off the floor before five seconds have passed? To find out, we designed an experiment to give us data.
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Health & MedicineThe five-second rule: Growing germs for science
Is it true that food dropped on the floor and picked up after five seconds is clean? To find out, we’re building an incubator and allowing any hitchhiking germs to grow.
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Health & MedicineThe five-second rule: Myth busted?
We’ve done an experiment to test the five-second rule. Now it’s time to analyze the data. Be forewarned: They’re not appetizing.
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Health & MedicineThe five-second rule: Microbes can’t count
A good scientific study compares results to what other scientists have done. These scientists have all debunked the five-second rule.
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AnimalsPoop-eating gulls can be pain in the butt for seal pups
The birds can harm baby fur seals as they try to dine on fresh parasites in the pups’ feces.