Engineering Design

  1. Tech

    Rewritable paper: Prints with light, not ink

    Rewritable paper could save money, preserve forests and cut down on waste — and all without using any ink.

  2. Computing

    Explainer: What is a computer model?

    Computer models use data, math and computer instructions to predict events in the real world.

  3. Tech

    Make your own mini hovercraft

    Hovercraft aren’t just the cars of the future. You can make your own with just a few household items.

  4. Brain

    Magnets may make helmets safer

    Magnets in sports helmets could repel players’ heads as they move toward a collision. This should reduce the risk of the hard hits that lead to concussions.

  5. Genetics

    Why animals often ‘stand in’ for people

    Rats, birds, fish — even flies and worms — can stand in for people in laboratory testing. This allows scientists to safely evaluate harmful chemicals as well as to identify and test potential new drugs. But such tests will never be a foolproof gauge of effects in people.

  6. Tech

    Wind power is looking up — to the clouds

    Placing wind turbines high in the sky could let them harvest power from the faster, more reliable winds found at altitude.

  7. Planets

    Picture This: Falling to a comet

    After a more than decade-long ride, a robotic lander has left its spacecraft and floated down onto the surface of a comet. From there it should begin scouting for hints at how our solar system formed.

  8. Teachers launch weather balloons, and a passion for science

    Making science hands-on can help inspire students and show how interdisciplinary research can be. Here, two teachers share their experiences working with a high-altitude research-balloon kit.

  9. Food can make an appetizing science fair project

    Many students think they need a laboratory or special equipment for a winning research project. But finalists at the Broadcom MASTERS competition showed food-based research may require little more than your home kitchen

  10. Microbes

    Recycling the dead

    When things die, nature breaks them down through a process we know as rot. Without it, none of us would be here. Now, scientists are trying to better understand it so that they can use rot — preserving its role in feeding all living things.

  11. Health & Medicine

    Ebola treatments and vaccines could be near

    Using experimental medicines against Ebola might help to slow or end an outbreak in Africa that has defied efforts to control it.

  12. Health & Medicine

    Cookie Science 2: Baking a testable hypothesis

    I would like to make a gluten-free cookie that my friend can eat. But to do that, I need to come up with a hypothesis to test.