Develop a model to generate data for iterative testing and modification of a proposed object, tool, or process such that an optimal design can be achieved.

  1. Health & Medicine

    Injected nanoparticles treat internal wounds

    Soldiers wounded in a bombing could be treated with a shot of specially designed nanoparticles that stop bleeding and inflammation in the lungs.

  2. Physics

    News Brief: As timely as it gets

    A newly modified atomic clock won’t lose or gain a second for 15 billion years. This timepiece is about three times more precise than an earlier version.

  3. Space

    Mini-sats: The trick to spying Earth-bound asteroids?

    NASA is supposed to begin nonstop screening by 2020 for all asteroids that could pose a threat to Earth. Some astronomers now think the only way to affordably meet that deadline is by using mini-satellites

  4. Chemistry

    Goopy tech leaves older 3-D printing in its wake

    A new way of 3-D printing combines light and oxygen to create solid objects from liquid resin. The method quickly creates detailed objects.

  5. Tech

    ‘Smart’ clothes generate electricity

    Scientists in South Korea have developed a fabric that captures energy from its wearer’s motions and turns it into electricity.

  6. Space

    Galaxy cluster creates ‘magnifying glass’ in space

    A massive galaxy’s gravity is so strong that it bends light, creating a “lens” in space. This natural magnifying glass is giving astronomers a rare view of a supernova on the other side of the universe.

  7. Tech

    Museum app fleshes out old bones

    Museum app breathes life into skeletons. But it will need more funding to make it shine.

  8. Health & Medicine

    Vision-ary high tech

    New devices are being developed to improve, restore or preserve the vision of people with eye diseases, such as glaucoma and macular degeneration. One device is a telescopic contact lens than can be zoomed with a wink.

  9. Materials Science

    ‘Smart’ windows could save energy

    Tiny chemical droplets in a liquid sandwiched between panes of glass turn cloudy when they warm up. This will block some sunlight and potentially save on air conditioning bills.

  10. Climate

    Fast sea level rise is a very recent change

    Sea levels have been rising for more than a century. But that rise is now speeding up. That suggests that what is driving the rise — climate change — also has increased dramatically in recent years.

  11. Animals

    How birds stay in the air

    The sensors inside a boxy device measure the forces generated with each stroke of a bird’s wings. Learning how much force is needed to keep a bird aloft could help in designing future drones that flap, hover and dart.

  12. Health & Medicine

    New germ fighter turns up in dirt

    Scientists have found a compound in soil that can kill the microbes that cause anthrax, tuberculosis and other diseases.