Engineering Design

  1. 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.

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  2. Health & Medicine

    Fist bumps cleaner than handshakes

    A handshake, while welcoming, can transmit lots of germs — many times more than a high five or, especially, a fist bump.

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  3. Tech

    Fashioning inks to ‘print’ tissues

    3-D printing may one day create life-saving tissues and organs for transplants. But first researchers are learning how to tailor cell-filled “inks” for use in inkjet printers.

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  4. Chemistry

    Chemistry: Green and clean

    “Green” means environmentally friendly and sustainable. Green chemistry creates products and processes that are safer and cleaner — from the start.

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  5. Wire critter shows power of surface tension

    Water striders walk on water by using surface tension. Now you can do the same with a wire critter weight-lifting contest.

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  6. Microbes

    Superbugs: A silent health emergency

    Have antibiotics become too popular? Overusing these medicines fuels resistant germs that pose a global health threat.

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  7. Tech

    A homemade bungee cord could save kids in hot cars

    Babies left in hot cars are in serious danger. A middle-school student invented a simple reminder to help parents keep their children safe.

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  8. Space

    What to wear on Mars

    NASA released details of the new, more flexible apparel being designed for long-distance travelers — such as those bound for another planet.

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  9. Physics

    Hazing: How to hide in nearly plain sight

    A new system takes advantage of a translucent fog of particles to hide otherwise obvious objects.

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  10. Kid inventors win big with a sign in the sky

    A team of kids designed a high-flying sign to help disaster victims get critical information during a potential blackout.

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  11. Inventors give the White House a Maker-over

    Inventors invaded the White House yesterday for the first ever White House Maker Faire, decorating the lawn with robot giraffes and filling the house with technology and engineering.

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  12. Rocket competition a blast for young scientists

    Young rocket scientists competed in Washington, D.C. last month, flying rockets with precious cargo: eggs. The top 10 teams split $60,000 in prizes.

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