Uncategorized
-
Health & MedicineExplainer: How the ears work
Most people probably think of their ears as the flaps on the sides of their heads. But there’s a lot of machinery inside that lets us hear our favorite tunes.
By Janet Raloff and Bethany Brookshire -
AnimalsScientists Say: Vampire
Human vampires are found only in fiction. But vampire bats and moths are the real thing. These animals love the taste of blood, and some can’t live without it.
-
ChemistryWhen bitter + bitter = sweet
Two artificial sweeteners lose their bitter aftertastes when combined together. Scientists have just figured out why.
-
Materials ScienceYou can peel permanent marker, intact, off of glass
The surface tension of water can essentially scrape a thin film of some water-repellent material — such as permanent ink — off of glass.
-
AnimalsSucking blood isn’t an easy life, even for vampires
Real vampires include bats, insects and even birds. And they’ve had to develop novel ways of dealing with a diet of blood.
By Susan Milius -
EarthMiddle-school scientists take home big prizes
Top finalists in the 2017 Broadcom MASTERS competition shared awards worth $100,000.
By Sid Perkins -
Health & MedicineSweat-slurping ‘aliens’ live on your skin
Archaea are famous for living in extreme environments. Now scientists find they also inhabit skin, where they seem to enjoy sweat.
-
TechThese robots quickly swap ‘origami’ jackets — and tasks
Quick-change origami wardrobes help robots change their shape — and skills.
-
ArchaeologyFiery tests suggest gooey tech by Neandertals
Neandertals could have used simple methods and handy materials to make tar. It would have helped them glue their tools together.
By Bruce Bower -
ChemistryScientists Say: Gradient
This is a word used to describe the rate that something changes over a distance or time. Examples include the strength of a smell or the steepness of a mountain.
-
ChemistryU.S. Army is developing high-tech underwear
A new fabric could warm the skin of active soldiers in cold climates. At the same time, it could soak away sweat that might otherwise cause chills.
-
ClimateIs weather control a dream or nightmare?
Weather control is largely fiction for now, although people are unintentionally changing their weather. And that might not be a good thing.