Matter and Its Interactions

More Stories in Matter and Its Interactions

  1. Physics

    Chopping an onion? Sharp knives can keep its juice out of your eyes

    Slow and steady cuts with a sharp blade, video shows, can reduce the pain-inducing spray of tiny onion-juice droplets by more than 100 feet!

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  2. Archaeology

    Knotted strands of 500-year-old hair tell a surprising story

    Used in a device called a khipu, the hair reveals the owner’s simple diet. Those data now suggest that in Incan society, even some commoners kept records.

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  3. Chemistry

    Behold the world’s thinnest pasta

    Made from white flour and formic acid, the nanofibers average just 370 nanometers across. That’s two-hundredths the thickness of a human hair.

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  4. Physics

    Weirdly, mayo can help study conditions ripe for nuclear fusion 

    Yes, mayo. The texture of the sandwich spread is perfect for mimicking what a fusion fuel capsule goes through when blasted with lasers.

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  5. Tech

    Bioelectronics research wins top award at 2024 Regeneron ISEF

    Three grand-award winners each took home at least $50,000. Hundreds more teens shared more than $9 million in prizes at the international competition.

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  6. Environment

    To limit pollution, new recipe makes plastic a treat for microbes

    Microplastics made from fossil fuels take centuries to disappear. But the plant- and algae-based plastic can break down in weeks to months.

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  7. Tech

    Lego bricks inspired a new way to shape devices for studying liquids

    Inspired by Lego building blocks, the approach could enable design of adaptable tools to study how fluids move through very small spaces.

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  8. Physics

    Experiment: Make your own cents-able battery

    Make your own ‘voltaic pile’ with pennies and nickels, and find out how many coins will make the most electricity!

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  9. Materials Science

    Scientists Say: Semiconductor

    Modern electronics, from cell phones to video games, work thanks to these conductor-insulator hybrids.

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