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Your search has returned 138 articles:
  • Cool Jobs: The power of wind

    Classroom tornado drills were routine for Harold Brooks as he grew up near St. Louis, Mo. And like many people, he thought tornadoes were fascinating. What else is powerful enough to flip over a train or hurl a saw blade into a tree? “I just didn’t know why they were cool back then,” he says.

    Now Brooks works on tornado research. He’s a meteorologist at the National Severe Storms...

    08:15 AM, March 10, 2016 Technology, Physics, Weather & Climate
    Readability Score: 6.8
  • New football helmets could limit brain injuries

    Two football players collide on the field. Both are wearing helmets. Still, their heads bang together, risking serious injury. A new helmet design might offer these players’ brains much better protection. Key to its advantage: three layers of energy-absorbing insulation. Most helmets today offer just a single layer.

    “Current helmets do a good job of reducing the force that gets to the...

    07:00 AM, February 22, 2016 Technology, Physics
    Readability Score: 7.2
  • Say hello to gravity waves

    On February 11, 2016, scientists announced that they had detected a burst of special waves. These waves — gravitational waves — are ripples in in the fabric of space, the result of two black holes slamming into each other. The famous physicist Albert Einstein predicted the existence of these waves 100 years ago. Now, the detection of these undulations has changed how we see the universe. Check...

    15:00 PM, February 12, 2016 Space, Astronomy, Physics
    Readability Score: 7.2
  • Gravity waves detected at last!

    WASHINGTON, D.C. — A very special burst of waves from deep space has forever changed the way we look at the universe. These aren’t water waves or waves of light. They are gravity waves, tiny ripples produced by massive objects moving very quickly.

    Two black holes produced the newly reported waves when they collided at some point roughly 1.3 billion years ago. Black holes are massive...

    10:34 AM, February 11, 2016 Astronomy, Space, Physics
    Readability Score: 6.9
  • Explainer: What are gravitational waves?

    Gravitational waves are ripples in the fabric of space. Throw a rock into a pond and it will create ripples — waves in the water — that appear to stretch and squeeze back again. Similarly, accelerating masses should send gravity waves into space. These ripples would cause space to stretch and squeeze back again.

    On February 11, 2016, after decades of trying to directly detect such waves...

    10:34 AM, February 11, 2016 Astronomy, Space, Physics
    Readability Score: 7.6
  • How to catch a gravity wave

    A January 2016 email caught me off guard. Peter Saulson, a physicist at Syracuse University in New York, was sharing a secret. In short order, he said, data would be formally published showing that gravity waves had finally been detected.

    Such rumbles emanate from the most violent events in the universe. And in September 2015, two gravity-wave observatories — or detectors — had picked up...

    10:33 AM, February 11, 2016 Physics, Astronomy
    Readability Score: 7.8
  • Bright night lights, big science

    In polar regions of the world, a dazzling light show often plays out in the night sky. It's called an aurora. Up North, it’s also known as the northern lights. It looks as if someone had stirred bright lights into the darkness, like cream into coffee. The lights are often green, but they also might glow red, yellow or other colors. Every so often, these lights explode in brightness. Such...

    07:00 AM, February 3, 2016 Earth, Physics
    Readability Score: 7.7
  • Tracking warfare by ‘Earth shakes’

    When Michael Wysession says his research is a blast, he isn’t kidding. Wysession is a geophysicist at Washington University at St. Louis, Missouri. He is interested in how to track the booms and blasts of a war zone. And he can now do it from a great distance.

    Geophysicists use seismographs (SYZE-moh-grafs) — also called seismometers — to detect seismic waves. These waves are pulses of...

    07:00 AM, February 1, 2016 Physics, Earth
    Readability Score: 7.7
  • News Brief: Why rainbows can lose some hues

    SAN FRANCISCO, Calif. — Some rainbows are missing a few colors. When the sun is low in the sky, those colorful arcs may contain only a fraction of the traditional red-to-violet hues. Or that’s what researchers reported December 17. They shared their new findings here at the American Geophysical Union’s fall meeting.

    Rainbows emerge as sunlight bends while passing through water droplets...

    07:00 AM, December 30, 2015 Physics, Earth, Light & Radiation
    Readability Score: 7.3
  • Zombie stars: A source of gravitational waves?

    GENEVA, Switzerland —  Pulsars are the dense cores of dead stars. But these zombies still communicate. They emit intense beams of radio waves with the regularity of a nearly perfect clock. A dancing pair of these cosmic radio beacons has just provided scientists with the best gauge that gravitational waves exist.

    Gravitational waves are ripples in the fabric of space. If you throw a rock...

    07:00 AM, December 28, 2015 Astronomy, Physics
    Readability Score: 8.5

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