Physical Science - Motions and forces

  • 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
  • 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
  • Dig the latest top tech tricks

    What you can’t see can still interest you. Archeologists use radar, magnetic, electrical gizmos to see through the ground, find places to dig.


    Thursday, June 5th, 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
  • It’s snow-time! Dig into our all-flake, no fake feature!

    Frosty questions: Are some snowflakes identical? How do flakes form, and how does weather affect their shape? How does ice in the atmosphere affect weather and climate? And where does the jet stream fit in this picture?


    Thursday, December 27th, 2007
  • Science Meets Sports
    Science Meets Sports

    The Why Files looks at kinesiology, sports medicine, psychology and some ancient Olympic history, brought to life.


    Thursday, January 26th, 2006
  • Understanding Volcanoes

    How do volcanoes work (p. 2)? How do we predict them (p. 3)? How do they change the landscape (p. 4)? How does life return after the eruption (p. 6)?


    Thursday, October 21st, 2004
  • 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
  • Particles Get Entangled: Weird Quantum Interaction

    Austrian researchers show quantum entanglement across the Danube River, providing new promise in cryptography and computing. At the smallest scale, you can throw out the usual rules of engagement. What’s up with spooky action at a distance?


    Thursday, June 26th, 2003


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