Add Yahoo as a preferred source to see more of our stories on Google. Jon Wolfsthal, director of global risk at the Federation of American Scientists (FAS), Asha George, executive director of the ...
Interesting Engineering on MSN
Japanese scientists make ytterbium atomic clock that could detect dark matter
Physicists have developed a highly precise and ultra-sensitive atomic clock based on ytterbium, which ...
Clocks on Earth are ticking a bit more regularly thanks to NIST-F4, a new atomic clock at the National Institute of Standards and Technology (NIST) campus in Boulder, Colorado. NIST-F4 measures an ...
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