Energy

  1. Tech

    Robots made of cells blur the line between creature and machine

    Scientists are using living cells and tissue as building blocks to make robots. These new machines challenge ideas about robots and life itself.

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  2. Physics

    Explainer: How do mass and weight differ?

    Learn why these terms aren’t the same and which to use where. And should you report your results in kilograms? Pounds? If in doubt, try using newtons.

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  3. Environment

    Clothes dryers may be a major source of airborne microplastics

    Scientists thought washing machines were a leading contributor of microplastics. Now it appears dryers may be an even bigger problem.

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  4. Physics

    Scientists Say: Voltage

    Voltage is a measure of how much electricity is available to power devices.

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  5. Physics

    Explainer: Understanding electricity

    Here’s what allows you to plug in and power up the devices in your life.

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  6. Microbes

    Genes point to how some bacteria can gobble up electricity

    A new study shows how some microbes absorb and release electrons — a trait that may point to new fuels or ways to store energy.

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  7. Brain

    Scientists Say: Haptic

    Haptic is an adjective used to describe things related to our sense of touch.

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  8. Physics

    Scientists Say: Mass

    Mass shows how much an object resists speeding up or slowing down when force is applied — a measure of how much matter is in it.

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  9. 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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  10. Space

    Raindrops on alien worlds will obey Earth-like rules

    Their size will be similar no matter what they’re made of or on which planet they fall, a new analysis finds.

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  11. Physics

    Getting cozy with a science experiment

    Items you use in your home can inspire a scientific experiment.

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  12. Physics

    Scientists Say: Radiation

    Radiation is the motion of energy through space as waves or particles.

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