Motion and Stability: Forces and Interactions

  1. 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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  2. 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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  3. 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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  4. Life

    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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  5. 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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  6. Chemistry

    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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  7. Archaeology

    The earliest known pants are surprisingly modern — and comfy

    This 3,000-year-old garment was not only stylish but also functional. By recreating it, scientists also unraveled its complex and multicultural origins.

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  8. Chemistry

    Scientists Say: Cellulose

    Cellulose is an abundant natural polymer found in plants and algae. It’s used to make everything from paper to clothing.

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  9. Physics

    Explainer: How do mass and weight differ?

    Learn why these terms aren’t the same and which to use where. And should you report your results in kilograms? Pounds? If in doubt, try using newtons.

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  10. Earth

    Scientists Say: Pollution

    Pollution is any substance or form of energy released into the environment that is harmful to people or other living creatures.

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  11. Chemistry

    Clothes dryers may be a major source of airborne microplastics

    Scientists thought washing machines were a leading contributor of microplastics. Now it appears dryers may be an even bigger problem.

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  12. Physics

    Analyze This: Masks cut the distance that spit droplets fly

    Both cloth masks and surgical masks reduced the distance spit traveled from a person talking or coughing by at least half, compared with no mask.

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