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  • Safer, Longer-Lasting Batteries

    Thin-film technology is still expensive, but it could soon run remote sensors and medical implants–and one day electric vehicles.


  • How to Burn a Three Terabyte CD

    A new nano-optical device can focus laser light tighter than traditional optics, which could lead to higher-density data storage.


  • Gene Chips for Cows

    Applying cutting-edge genomics techniques to cattle might produce more milk and tastier beef.

  • Cheap, Portable MRI

    A new device uses inexpensive, low-power magnets and lasers to create images for materials and biomedical applications.

  • Missile Defense: Hit or Miss?

    The most recent test of the U.S. missile defense system is receiving criticism from technical observers for its simplicity and secrecy.


  • Better Fuel Cells for Laptops

    Adding a chemical found in antifreeze to fuel cells could provide a longer-lasting alternative to batteries in portable electronics.


  • Solar Cells for Cheap

    Not everyone gets a solar cell named after them: but Michael Gratzel did. He says his novel technology, which promises electricity-generating windows and low manufacturing costs, is ready for the market.



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