
Tech
New ‘ionic wind’ can dry foods while preserving nutrients
Researchers have come up with a way to increase the energy efficiency of a drying technique, possibly making it ready for prime time.
By Sid Perkins
Researchers have come up with a way to increase the energy efficiency of a drying technique, possibly making it ready for prime time.
Weekly updates to help you use Science News for Students in the learning environment
Counter-speech, artificial intelligence and other tools can help spot online hate — and maybe thwart it. New studies show how.
The catalyst is an improvement over its predecessors. Made of cheap materials like iron, it produces jet fuel in a single step.
New piezoelectric systems produce electricity in unusual ways, such as when a certain nylon bends or underwater ceramics vibrate.
Algebra is a type of mathematics that studies symbols and how they can be shifted around.
Santa may be magical. But the North American Aerospace Defense Command (or NORAD) uses science to track his journey.
A fluorescent polymer duo boosts the efficiency of solar cells. One day this material may coat your jacket, hat or backpack to provide power on the go.
Most facial-recognition software has to see the whole face to work. The new type can reconstruct an entire expression from just viewing your cheeks.
Scientists use virtual reality to build new games and to help people fight their fears.
Engineers have developed a wearable device that simulates the sense of touch. It may benefit robotic surgery and deep-sea exploration.