Engineering Design

  1. Environment

    Common water pollutants hurt freshwater organisms

    The germ killers we use and the drugs we take don’t just disappear. They can end up in the environment. There they can harm aquatic organisms, three teens showed.

  2. Materials Science

    Nanowires could lead to super-long-lived battery

    Scientists have long been looking for ways to make rechargeable batteries that last forever. They now may be close. Their solution: gel-dipped nanowires.

  3. Health & Medicine

    Injured leg? Here’s a built-in footstool

    Sometimes doctors advise people to keep a leg elevated, but there’s no footstool to rest it on. A teen designed a brace with a built-in kickstand.

  4. Tech

    New device identifies money by its color

    Two teens have invented a gadget that can help the blind identify the value of a banknote based on its color.

  5. Teens share what inspired them in STEM

    What inspires kids to pursue science, technology, engineering and math? These teens share their stories.

  6. Brain

    Eyes offer new window into Alzheimer’s disease

    The eye’s retina is distinctly different in people with Alzheimer’s disease compared to those with no signs of the malady, two teens now report finding. It could lead to earlier diagnosis of the brain disease.

  7. Taking science to the track

    An athlete took on science research with a few friends and a heart monitor.

  8. Health & Medicine

    Keeping samples cool without electricity

    When vaccines and blood get too warm or cold, they can become useless. Two teens invented ways to keep their temperatures just right, no matter where they are.

  9. Animals

    What medicine can learn from squid teeth

    Scientists have identified what makes a squid's sucker teeth so strong. The findings may one day prove useful in medicine.

  10. Health & Medicine

    The cool science of hot peppers

    Why are chili peppers spicy? Why does anyone crave food that burns? Uncovering this fiery veggie’s secrets could help fight pain and obesity.

  11. Computing

    DNA can now store images, video and other types of data

    Tiny test tubes might one day replace sprawling data-storage centers, thanks to a new way to encode and retrieve information on strands of synthetic DNA.

  12. Health & Medicine

    Headed to a concert this summer? Pack earplugs

    Wearing earplugs at concerts and other loud events may prevent hearing loss and permanent ear damage, a new study suggests.