Tech

  1. Tech

    Underwater robot vacuums up lionfish

    Lionfish damage coral reefs in the Atlantic Ocean. A new underwater robot hunts, stuns and captures the bullies with help from a human operator.

    By Kathryn Hulick
  2. Tech

    Maybe ‘shade balls’ should not be balls

    So-called shade balls have a range of uses in water reservoirs, from cutting evaporation to reducing the growth of algae. But the best performers might not actually be balls, a Florida teen now shows.

    By Sid Perkins
  3. Brain

    When is an epileptic seizure about to strike?

    Two high-school research projects suggest ways to identify early warnings of a coming epileptic seizure. This might give people time to free themselves from potentially dangerous activities.

    By Sid Perkins
  4. Tech

    Needle-free blood typing may be on the way

    A teen in Kuwait presents data suggesting how, one day, it may be possible to figure out your blood type just by shining infrared light into your skin.

    By Sid Perkins
  5. Tech

    Teen’s invention could help light up bikes at night

    A teen researcher from Georgia has developed a light that could replace reflectors on bike wheels. Flexing tires provide all the power it needs.

    By Sid Perkins
  6. Tech

    Tweaked germs glow to pinpoint buried landmines

    Finding landmines could become much safer with a new technology. It uses genetically modified bacteria that glow under laser light.

    By Dinsa Sachan
  7. Tech

    Teens garner some $4 million in prizes at 2017 Intel ISEF

    Hundreds of teens collectively took home about $4 million in awards from the Intel International Science and Engineering Fair this week.

    By Sid Perkins
  8. Tech

    A better way to stop a bullet?

    A teen researcher's tests suggest that fabric body armor might stop bullets better if it were woven using a three-fiber, triangular mesh instead of the typical two-fiber-mesh configuration.

    By Sid Perkins
  9. Tech

    Teen’s invention can warn of deadly rip currents

    A teen lifeguard from Australia has invented a buoy that can alert swimmers to the strong, swift and deadly rip currents that can sweep them dangerously far offshore.

    By Sid Perkins
  10. Physics

    Why your shoelaces untie themselves

    High-speed video shows how the combined motions of a shoe’s swinging and landing on the ground provoke shoelaces to come untied.

    By Sharon Oosthoek
  11. Materials Science

    Nanowires made from silver are super stretchy

    When silver nanowires stretch slowly, atoms on their surface can spread to heal weak spots. The discovery could lead to more flexible electronics.

    By Sid Perkins
  12. Tech

    These antennas turn anything into a radio station

    Engineers have developed antennas that can turn ordinary objects — even posters — into radio stations.

    By Stephen Ornes
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