Tech
-
ComputingHow 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.
-
ChemistryA 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.
-
TechBye-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.
-
MathScientists Say: Algebra
Algebra is a type of mathematics that studies symbols and how they can be shifted around.
-
TechTracking Santa with science
Santa may be magical. But the North American Aerospace Defense Command (or NORAD) uses science to track his journey.
-
TechFlexible 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.
-
TechNew 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.
-
TechLet’s learn about virtual reality
Scientists use virtual reality to build new games and to help people fight their fears.
-
TechThis artificial skin feels ‘ghosts’ — things you wish were there
Engineers have developed a wearable device that simulates the sense of touch. It may benefit robotic surgery and deep-sea exploration.
-
ComputingExplainer: What is an algorithm?
These step-by-step instructions underlie social media, internet searches and other computer-based activities. But what are they exactly? We explain.
-
TechComputers are changing how art is made
Some people have challenged the idea that artificial intelligence can be creative. But new software can provide inspiration to artists or fully partner with them in the creative process.
-
TechOrdinary paper turns into flexible human-powered keypad
Engineers have figured out how to turn sheets of paper into rugged, low-cost electronic devices, such as a computer keypad.