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  • 美国科学60秒 SSS 2013-03-01

    As many San Franciscans have noticed, sourdough bread stays fresher longer than the regular stuff. Sourdoughs extended freshness is due to extra fermentation that traps more moisture in the dough. But now we know that sourdoughs longevity is also bec...

  • 美国科学60秒 SSS 2013-02-27

    As many San Franciscans have noticed, sourdough bread stays fresher longer than the regular stuff. Sourdoughs extended freshness is due to extra fermentation that traps more moisture in the dough. But now we know that sourdoughs longevity is also bec...

  • 美国科学60秒 SSS 2013-02-26

    About 5,000 years ago in Peru, culture kicked into high gear. During whats called the late Archaic period, South Americans formed permanent communities with complex architecture, religion and agriculture. And now scientists have shown that maize play...

  • 美国科学60秒 SSS 2013-02-25

    The best value for money in cooking equipment, in my mind, is first a digital scale and digital thermometer. Theyre both about $20. They help you cook so much more accurately that theyre both enormously valuable. Nathan Myhrvold is the former chief t...

  • 美国科学60秒 SSS 2013-02-22

    Astronaut M B spent 199 days on the international space station in 2009.On Feb. 17th 2013, he told kids about his time in space as part of Family Science Day Effort on the Annual Meeting of American Association for the Advance of Science in Boston.Qu...

  • 美国科学60秒 SSS 2013-02-21

    Naked skin or effectively naded skin has been the primary interface between the human body and the environment for over 200,000 years. Penn State anthropologist Nina Jablonski on the evolution of human skin pigmentation at the annual meeting of the A...

  • 美国科学60秒 SSS 2013-02-20

    This is Scientific American - 60 Second Science. I am ...This will just take a minute. When it comes to mussels, bigger is not necessarily better. Tiny fibers called bissels and able muscles ,the shell fish kind,to anger themselves to coast lines,des...

  • 美国科学60秒 SSS 2013-02-19

    This is scientific American's science 60 second science, I am steve mosbyA lot of people have had compacted third molars. Third molars produce chronic pain. Allen man, a Princeton University Physical anthopolegist, the annual meeting of the immagrate...

  • 美国科学60秒 SSS 2013-02-18

    A lot of people have had impacted third molars. Third molars produce a lot of chronic pain. Alan Mann, a Prinston University physical anthropologist at the annual meeting of the American Association for the Advancement of Science in Boston on Februar...

  • 美国科学60秒 SSS 2013-02-15

    Astronomers have searched far and wide for a planet that are the right size and in the right place to support life. Well, maybe they should have set their sight a little close to the home. Because a new study suggests there may be earth-like planet j...

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