Motion and Stability: Forces and Interactions

  1. Tech

    A tool as small as a human cell can scan for contaminants and more

    Tiny spectrometers might someday show up on smart devices. They could help people scan for ingredients or contaminants in foods and other materials.

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  2. Environment

    This chemist uses online videos to teach about the perils of microplastics

    Imari Walker says her journey as a scientist and science communicator lets her talk about and advocate for her passion.

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  3. Chemistry

    Explainer: What is a hydrogel?

    These unusual materials have a host of unusual properties. You can even make a starch-infused version in your kitchen.

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  4. Environment

    ‘Forever’ chemicals show up in students’ school uniforms

    Researchers found PFAS “forever chemicals” in kids’ school uniforms and other clothing. Studies have linked these compounds to health risks.

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  5. Tech

    A shape-shifting robotic tooth-cleaner might one day brush for you

    A swarm of billions of magnetic, bacteria-killing nanoparticles can be shaped into bristles to fit any surface, including between teeth.

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  6. Chemistry

    Could we make vibranium?

    The ‘perfect’ metal may belong to the fictitious Marvel world of Wakanda, but scientists hope to one day mimic some of its key traits.

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  7. Materials Science

    These fabrics change color as they stretch

    Stretchy, color-shifting cloth may lead to new art, fashions and sensors. A century-old Nobel-prize-winning invention served as its inspiration.

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  8. Earth

    Scientists Say: Pole

    A pole is either of two opposite ends of a molecule, magnet, battery, planet or other object.

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  9. Animals

    Sea creatures’ fishy scent protects them from deep-sea high pressures  

    TMAO’s water-wrangling ability protects a critter’s critical proteins — including muscle — from crushing under deep ocean pressures.

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  10. Life

    Let’s learn about modern Frankensteins

    Modern scientists are creating strange new combinations of living tissue and trying to give dead things new life.

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  11. Chemistry

    Lego-like way to snap molecules together wins 2022 chemistry Nobel

    This so-called ‘click chemistry’ allows scientists to build complex molecules in the lab and in living cells.

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  12. Tech

    No trees were harmed to 3-D print this piece of wood

    How clever! Scientists used print-speed adjustments to control how flat, 3-D printed shapes morph into complex wooden objects.

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