Grades 5-8 - Physical Science

  • The importance of being Einstein
    The importance of being Einstein

    Experiment finds Earth “dragging” spacetime, as Einstein predicted. For 100+ years, scientists have been proving that Einstein knew his physics. Bending light, gravity lenses, shifting spacetime, spinning neutron stars: Einstein called them all. If so many top physicists are brilliant, why do we keep coming back to Einstein?


    Thursday, May 19th, 2011
  • Spider silk: Material of the future?
    Spider silk: Material of the future?

    Strong, tough, sticky, elastic and biodegradable, silk may be used for a mesh to support injured tissues, or as a temporary container for drugs, stem cells and growth factors. As scientists divine the secret of how spiders and silkworms make silk, they are finding ways to engineer silk into medical devices.


    Thursday, July 29th, 2010
  • 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
  • Graphene tubes look like rolled chicken wire
    Nanotech

    Adding nanotubes makes a stronger plastic, but adding several nano-structures greatly increases the benefit, according to a new study from India. Read about the frontier of material science.


    Thursday, July 30th, 2009
  • New battery technology allows fast charge and discharge
    New battery technology allows fast charge and discharge

    By tweaking the conventional recipe, researchers have sped up electricity movement in a lithium battery by 100X. Want to charge your electric car in minutes or your phone in seconds?


    Thursday, March 12th, 2009
  • Fuel Faves: Coffee meets diesel!
    Fuel Faves: Coffee meets diesel!

    Oils in spent coffee grounds are easily converted into biodiesel — a renewable source of transportation energy. Bottoms up for CofFuel?


    Tuesday, January 6th, 2009
  • Life during the “other” Big Bang!

    Did the arrival of 4,000,000,000,000,000,000 tons of space junk start the formation of organic molecules roughly 4 billion years ago? “Could be,” says a new study from Japan…


    Thursday, December 11th, 2008
  • Small is beautiful: Nanotech meets biology!

    Biology operates on the nanometer scale, and now ultra-small technology is producing monster benefits for genetic analysis, cell biologists, and the treatment of blinding glaucoma.


    Thursday, September 25th, 2008
  • Running short of copper, phosphorus, rare elements

    We need elements. Without phosphorus fertilizer, millions would starve. A shortage of copper means a shortage of electricity. And we’re importing more than 95% of the “rare-earth” elements needed for LCDs, cell phones and green energy. Is this smart?


    Thursday, September 11th, 2008


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