Tech

  1. Tech

    5G promises new energy savings for digital tech

    A new way to transmit wireless communications promises time and energy savings by using networks of smaller cells.

    By Kathryn Hulick
  2. Tech

    Greening your digital life

    The less electricity you use while playing video games or using your devices, the less impact you’ll have on climate change.

    By Kathryn Hulick
  3. 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.

    By Kathryn Hulick
  4. Science & Society

    Machine learning includes deep learning and neural nets

    By combining patterns found in mountains of data with information gleaned from mistakes, these computer programs expand their artificial intelligence.

    By Melissa L. Weber
  5. 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
  6. 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.

    By Emily Conover
  7. 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?

    By Laura Sanders
  8. 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.

    By Kathiann Kowalski
  9. 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 Maria Temming
  10. 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 Kathryn Hulick
  11. Math

    Scientists Say: Algebra

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

    By Bethany Brookshire
  12. 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 Bethany Brookshire
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