Tech
- Tech
Training AI to be really smart poses risks to climate
As artificial intelligence models grow larger and consume more energy, experts have begun to worry about their impact on Earth’s climate.
- 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.
- Tech
A robot made with a Venus flytrap can grab fragile objects
Scientists have “borrowed” the hair-trigger leaves of Venus flytraps to make a gentle grabber that can be controlled by a cellphone app.
- Science & Society
New technology can get inside your head. Are you ready?
New technologies aim to listen to — and maybe even change — your brain activity. But just because scientists can do this, should they?
- Science & Society
How to fight online hate before it leads to violence
Counter-speech, artificial intelligence and other tools can help spot online hate — and maybe thwart it. New studies show how.
- Chemistry
A new catalyst turns greenhouse gas into jet fuel
The catalyst is an improvement over its predecessors. Made of cheap materials like iron, it produces jet fuel in a single step.
- Tech
Bye-bye batteries? Power a phone with fabric or a beacon with sound
New piezoelectric systems produce electricity in unusual ways, such as when a certain nylon bends or underwater ceramics vibrate.
- Math
Scientists Say: Algebra
Algebra is a type of mathematics that studies symbols and how they can be shifted around.
- Tech
Tracking Santa with science
Santa may be magical. But the North American Aerospace Defense Command (or NORAD) uses science to track his journey.
- Tech
Flexible devices may help clothes solar power your screens
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.
- Tech
New device tells smiles from frowns — even through a mask
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.
- Tech
Let’s learn about virtual reality
Scientists use virtual reality to build new games and to help people fight their fears.
