Uncategorized
-
ClimateClues to the Great Dying
Millions of years ago, nearly all life on Earth vanished. Scientists are now starting to figure out what happened.
By Beth Geiger -
ChemistryMealworms chow down on plastic
Gut bacteria in mealworms break down polystyrene. Feeding plastic to the worms, or the germs they carry, could be a way to get rid of these wastes.
-
MathScientists Say: Quartile
A quartile might sound like a fourth. But that’s not quite what it is.
-
BrainCan’t sing on-key? Blame the brain
Tone-deafness doesn’t mean that someone can’t hear music. The brain just misinterprets what it “hears”, a new study suggests.
-
ClimatePicture This: Biggest hurricane in the West
The hurricane that’s storming into western Mexico has had higher sustained winds than any seen in the Western Hemisphere. It’s also got the lowest atmospheric pressure, making it a monster storm.
By Janet Raloff -
BrainNew light on brain science
A combination of physics, biology and engineering lets scientists use light to trigger actions by specific brain cells. Called optogenetics, this technology is shining new light on how the brain works.
-
Health & MedicineInternet use may harm teen health
Using the Internet more than two hours a day puts teens at risk of high blood pressure, a new study finds.
-
BrainExplainer: What is anxiety?
Anxiety is the stress linked to worries about an upcoming event — one that may not even happen. But anxiety can affect the body every bit as much as does the stress provoked by staring down a hungry lion.
-
Health & MedicineIf you’re awake, you’re probably eating
The idea that we eat three meals a day is a myth. People eat nearly constantly, and that may not be good for our health.
-
AnimalsThis prehistoric meat eater preferred surf to turf
For years, paleontologists thought the fierce, sharp-toothed Dimetrodon made a meal of land-based plant eaters. Not anymore. New fossils suggest aquatic animals were its meals of choice.
By Meghan Rosen -
ChemistryThese bubbles treat wounds
New research shows bubble-powered drugs can travel upstream, against the flow of blood, to seal wounds shut.
By Meghan Rosen -
EarthScientists Say: Jet Stream
You might hear about the jet stream on a weather report, but what is it? We explain.