Physics

  1. Physics

    The movie Frozen inspired the icy, 3-D printing of blood vessels

    Ice guides a 3-D printing method to make realistic, artificial blood vessels. One day, such vessels could be used in lab-grown organs.

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  2. Physics

    Let’s learn about particles that help us peer inside objects

    Particles such as muons, X-rays and neutrons help scientists peer inside fossils, mummies, pyramids, volcanoes and the human body.

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  3. 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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  4. Materials Science

    Scientists Say: Semiconductor

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

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  5. Chemistry

    Turning jeans blue with sunlight might help the environment

    When dipped in indican and exposed to sunlight, yarn turns a deep blue. This process is more eco-friendly than the current denim dyeing method.

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  6. Space

    Explainer: What is the solar cycle?

    Here’s what causes the sun’s 11-year cycle of activity and what it means for us on Earth.

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  7. Physics

    Forests could help detect ‘ghost particles’ from space

    If trees could act as natural antennas, one physicist proposes that they just might pick up signals of hard-to-spot ultra-high energy neutrinos.

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  8. Earth

    Explainer: Sprites, jets, ELVES and other storm-powered lights

    Fleeting glows collectively known as “transient luminous events” flash in the skies above powerful lightning storms.

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  9. Physics

    Here’s why blueberries aren’t blue — but appear to be

    Blueberries actually have dark red pigments — no blue ones — in their skin. Tiny structures in the fruits’ waxy coat are what make them seem blue.

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  10. Earth

    The weird sky glow called STEVE is really confusing scientists

    Researchers are trying to figure out the recipe of atmospheric conditions that creates this aurora-like light show.

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  11. Physics

    Physics explains what happens when a lawn sprinkler sucks in water

    Experiments with a floating sprinkler revealed the surprisingly complex physics behind a simple question.

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  12. Physics

    Physics explains why poured water burbles the way it does

    The loudness of falling water depends on the height of the pour and the thickness of the stream.

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