Chemistry

  1. Chemistry

    Chemists look to mine silver from laundry wastewater

    Recovering silver from wastewater could prevent the metal from ending up in lakes, rivers and the ocean, where it could poison wildlife.

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  2. Plants

    Increasingly, chocolate-makers turn to science

    Chocolate is delicious and may even have health benefits. To make sure there’s enough to go around, scientists are growing heartier cacao trees.

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  3. Health & Medicine

    Janet’s chocolate mousse pie

    The top two ingredients — dark chocolate and tofu — both have a reputation for being healthy. The good news for those who don’t like tofu: You can’t taste it in this pie. It just tastes like a very rich, thick chocolate mousse.

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  4. Chemistry

    Scientists Say: Salt

    Salts in chemistry are compounds made when a positively charged acid is combined with a negatively charged base. Table salt is one example.

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  5. Chemistry

    Changing toothpastes? Change your toothbrush

    Scientists have found that toothbrush bristles absorb triclosan, then release the potentially toxic chemical when users switch toothpastes.

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  6. Chemistry

    Scientists Say: Amino Acid

    Amino acids are small molecules that make up proteins and serve as messengers in our cells.

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  7. Environment

    Touching receipts can lead to lengthy pollutant exposures

    The chemical BPA, which coats some cash-register receipts, may linger in the body for far longer than if someone had ingested it.

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  8. Chemistry

    Explainer: Store receipts and BPA

    The chemical BPA may become trapped in the skin, causing it to linger in the body for a week or more after touching receipt paper.

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  9. Chemistry

    Knowing what you don’t know can help your grades improve

    Students who don’t know much tend to be overconfident. A new study shows how bursting their bubbles can help their grades.

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  10. Animals

    Scientists Say: Luminescence

    Light and heat don’t always have to go together! Luminescence is what occurs when a substance emits light without making heat.

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  11. Chemistry

    Science works to save a salty world treasure

    Poland’s 700-year old salt mine, just outside Kraków, not only is a cultural art treasure, but also an active research site for geologists, chemists and more.

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  12. Chemistry

    When bitter + bitter = sweet

    Two artificial sweeteners lose their bitter aftertastes when combined together. Scientists have just figured out why.

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