Physical Science - Motions and forces

  • Boasting about the boson
    Boasting about the boson

    “Yes, but…” is the word from the frontiers of physics. The world’s largest atom smasher has blasted protons against each other with such enormous energy that they have — apparently — appeared in the debris of decaying particles. At last, matter can have mass!


    Thursday, July 5th, 2012
  • Pitching the biomechanics
    Pitching the biomechanics The fate of baseball teams valued at hundreds of millions of dollars and followed by millions of rabid fans can come down to the elbow ligaments of a handful of young men who can throw a ball nearly 100 mph. But that doesn’t mean the best science guides their training.
    Thursday, May 17th, 2012
  • Dunewatching, Martian style
    Dunewatching, Martian style

    New pix from Mars show sand dunes on the move. Mars has been dry for 1.5 billion years; could massive erosion be due to wind? Yes, says a new report that tracked dunes with precise new images. Surprise: dunes move as fast on Mars as on Earth!


    Thursday, May 10th, 2012
  • The importance of being Einstein
    The importance of being Einstein

    Experiment finds Earth “dragging” spacetime, as Einstein predicted. Einstein knew his physics. Bending light, gravity lenses, shifting spacetime, spinning neutron stars: he called them all.


    Thursday, May 19th, 2011
  • Double the bubble!
    Double the bubble!

    High-speed movies of popping bubbles show a ring of “daughter” bubbles forming around the edge. A close look reveals a third generation of “granddaughter” bubbles. How does this happen? Does this matter to real-world medicine and climatology? And can we get paid to play with bubbles?


    Thursday, June 10th, 2010
  • Pop goes the super supernova
    Pop goes the super supernova

    Titanic explosion shows one of the biggest bangs since the Biggest Bang, spreads useful elements through the universe. Finally revealed: anti-matter is working for you!


    Thursday, December 3rd, 2009
  • Electric eye learns from animal eye!

    Lenses cannot project a perfect image on the flat back of a camera, so images are distorted at the edges. A revolutionary camera solves this problem by curving the light detector.


    Thursday, August 7th, 2008
  • The sounds of sax

    New study shows that controlling throat shape helps pro players hit the high notes that elude amateurs.


    Thursday, February 7th, 2008
  • The frets on a guitar neck are placed to produce the smallest interval on the chromatic scale: a half-step.
    Music and speech

    Most music is built on the 12-tone “chromatic” scale. Does this reflect chance, or the basic structure of the human voice? New study finds tight link between pronunciation and musical scale.


    Thursday, June 7th, 2007
  • Star Formation: The Ultimate How-To…

    Infrared survey of Milky Way shows massive star formation. How could a supernova cause stars to start?


    Thursday, June 24th, 2004
  • Making of a Racehorse

    Scientists work to select and breed first-rate racehorses using biomechanics and computer software. Result? Love that big butt!


    Thursday, July 24th, 2003
  • Darlene Young reacts to the devastation around her house in Pierce City, Mo., Monday, May 5, 2003, the day after the town was hit by a tornado. Young says her house was spared destruction by a church next to it that took the brunt of the winds. (AP Photo/John S. Stewart)
    Tornadoes: Power & Fury

    Tornadoes kill 60 Americans each year. How do we predict tornadoes? How do we make houses safer? Where do tornadoes get their energy?


    Monday, May 12th, 2003
  • The Petronas Towers, in Malaysia, are now the world's tallest. They're also half empty.
    Skyscrapers: Engineering Challenge

    What did the losing World Trade designs look like? What is the significance of a city skyline?


    Thursday, January 30th, 2003
  • T-rex Runs (but Slowly)

    Tyrannosaurus rex was no sprinter, new biomechanical study finds.


    Thursday, February 28th, 2002
  • Moon’s Origin: Giant Smash-up!

    Moon was formed by impact of Theia with Earth. How do we know this, and why might we care?


    Thursday, November 8th, 2001


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