Physics

  1. Physics

    Black hole smashup sent out ‘yottawatts’ of power

    When two black holes collided, they released a lot of energy in gravity waves. How much? How about 36 septillion yottawatts of power!

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  2. Physics

    Scientists Say: Watt

    Say Watt? This is a unit used to measure the flow of energy being used.

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  3. Plants

    Less brilliant flowers still keep bees coming back

    Bumblebees prefer petals that aren’t overly shimmery. This suggests plants are attuned to what insects see.

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  4. Physics

    Scrubbing bubbles: Secret to ouch-free dental cleanings?

    People with sensitive teeth can find routine dental cleanings painful. But bubbles might pave way to no-touch — and pain-free — cleaning for these people.

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  5. Tech

    Eggshells help hatch a new idea for packaging

    Why just crack an egg? Make the shell into itty bitty bits and use them to build a more biodegradable plastic. New research shows how.

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  6. Tech

    Goo-oozing deicer protects surfaces

    New, slime-oozing coating might someday help reduce ice and snow buildups on road signs and aircraft wings. The inspiration? The goo produced by slugs.

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  7. Physics

    Blowing bubbles for science

    What is most important when blowing bubbles? Air speed, not the thickness of the soap film, scientists find.

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  8. Tech

    Cool Jobs: The power of wind

    Science and engineering careers explore all aspects of wind, from terrible tornadoes to aeronautics and clean energy.

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  9. Physics

    Scientists Say: Kinetic energy

    This is energy that an object has when it is in motion.

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  10. Physics

    Scientists Say: Potential energy

    This is the energy an object has because of its position or condition.

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  11. Tech

    New football helmets could limit brain injuries

    A new design for football helmets uses three layers to absorb energy from repeated impacts. The result should be fewer athletes with brain injuries.

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  12. Space

    Say hello to gravity waves

    Einstein predicted these waves 100 years ago. Scientists have finally proven him right.

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