Chemistry

  1. Chemistry

    Explainer: What is an electrode?

    An electrode’s name depends on the circumstances. Confused? It may help to consider which electrochemical reaction is natural — and which is not.

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  2. Chemistry

    Explainer: Ions and radicals in our world

    When atoms get an electric charge, they act very differently. Now called ions, these are behind many aspects of chemistry, including acids and batteries.

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  3. Chemistry

    New glue offers to turn any small walking robot into Spider-Man

    To climb walls, robot feet need to alternately stick and let go. A novel adhesive can do that. Its stickiness is controlled by electric fields.

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  4. Chemistry

    Lots of makeup may contain potentially harmful ‘forever chemicals’

    Hints of PFAS compounds have turned up in about half of tested makeup products. Waterproof mascaras and lipsticks were very likely to contain them.

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  5. Chemistry

    Father-son bond inspires sweets that model the shapes of molecules

    These bite-sized gummy candies could spark interest in the world of chemistry, especially among students who can’t see.

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  6. Tech

    Sleep-friendlier lighting is on the way

    Chemists have created a new glowing material for LEDs. It should lessen how much near-bedtime lighting impairs your ability to nod off.

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  7. Chemistry

    Scientists Say: Bond

    In chemistry, this attachment between atoms forms because of the power of attraction. Chemical bonds make up every solid object on Earth.

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  8. Chemistry

    Scientists Say: Metal

    Metals are substances that can be elements, alloys or compounds. They all conduct heat and electricity and can be formed into different shapes.

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  9. Materials Science

    Copper ‘foam’ could be used as filters for COVID-19 masks

    The lightweight new material could serve as a washable and recyclable, eco-friendly alternative for many current mask filters.

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  10. Health & Medicine

    Cool Jobs: Saliva offers a spitting image of our health

    Scientists are using this secretion to study our body’s functions, to test for disease and even to diagnose injury.

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  11. Chemistry

    Scientists Say: Alkaline

    Alkaline chemicals are basic — substances that produce hydroxide ions in solution.

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  12. Chemistry

    New recycling technologies could keep more plastic out of landfills

    Recycling plastics is really hard — especially into useful materials. But new chemical tricks could make recycling easier.

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