Motion and Stability: Forces and Interactions

  1. Chemistry

    Reusable plastic bottles release hundreds of pollutants into water

    Data show the plastic ends up tainting drinking water. For now, scientists don’t know what health risks downing these pollutants might pose.

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  2. Health & Medicine

    Patches and robotic pills may one day replace injections

    Instead of a shot in the arm, a light-activated patch or robotic pill may one day deliver your medicine.

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  3. Plants

    Electric shocks act like vaccines to protect plants from viruses

    To protect crops against viruses in their home country of Taiwan, two teens invented a novel approach to fight blights.

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  4. Chemistry

    Let’s learn about cellulose

    The world’s most abundant natural polymer is finding all kinds of new uses, in everything from ice cream to construction.

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  5. Space

    Explainer: All about orbits

    A handful of rules can describe the route some object repeatedly takes around another in space. Calculating that path, however, can be quite complex.

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  6. Materials Science

    This new fabric can ‘hear’ sounds or broadcast them

    With special fibers that convert tiny vibrations to voltages, a new fabric senses sound. Someday, such fabrics could monitor the body or aid hearing.

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  7. Materials Science

    Let’s learn about the future of smart clothing

    Researchers are fashioning new materials to make clothes more comfortable and convenient.

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  8. Physics

    Explainer: The fundamental forces

    Four fundamental forces control all interactions between matter, from the smallest subatomic particles to the largest structures in the universe.

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  9. Materials Science

    Engineers borrow a tree’s cellulose to toughen new materials

    Cellulose gives plants their strength. Engineers are turning this renewable, environmentally friendly resource into brand new materials.

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  10. Tech

    Robots made of cells blur the line between creature and machine

    Scientists are using living cells and tissue as building blocks to make robots. These new machines challenge ideas about robots and life itself.

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  11. Tech

    A new device uses atoms’ quantum weirdness to peer underground

    Quantum sensors like this one could monitor magma beneath volcanoes or uncover archaeological artifacts.

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  12. Materials Science

    A disinfectant made from sawdust knocks out deadly microbes

    It’s made by pressure-cooking sawdust and water, is cheap and easy to make — and could lead to greener cleaning products than chemicals used today.

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