Tech

More Stories in Tech

  1. Computing

    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.

    By
  2. 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.

    By
  3. 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.

    By
  4. Math

    Scientists Say: Algebra

    Algebra is a type of mathematics that studies symbols and how they can be shifted around.

    By
  5. Tech

    Tracking Santa with science

    Santa may be magical. But the North American Aerospace Defense Command (or NORAD) uses science to track his journey.

    By
  6. 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.

    By
  7. 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.

    By
  8. Tech

    Let’s learn about virtual reality

    Scientists use virtual reality to build new games and to help people fight their fears.

    By
  9. Tech

    This 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.

    By