
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
A new super-absorbent swab could cut down on false negatives from COVID-19 testing. And that could help slow spread of the disease.
Piezoelectric materials produce an electric voltage when they are bent or squished. This can let us harvest electricity from movement.
The experiment revealed how long it takes light to cross a hydrogen molecule: just a couple hundred zeptoseconds.
Some types of face masks muffle speech more than others — something that teachers should take into account.
This invention grabs water from the air at night. All it needs is the sun’s warmth the next day to release that moisture to growing plants.
Gravity is an attraction between objects with mass. The more massive the object, the more gravity it’s got.
New piezoelectric systems produce electricity in unusual ways, such as when a certain nylon bends or underwater ceramics vibrate.
A new soil-based material offers an alternative to concrete for 3-D printing environmentally friendly buildings.
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.