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Keyword: millerurey

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  • Volcanic origin of proteins?

    03/23/2011 1:51:59 AM PDT · by AdmSmith · 62 replies
    The Scientist ^ | 21st March 2011 | Hannah Waters
    The reanalysis of a 1958 experiment suggests that volcanic eruptions may have spawned the amino acids that contributed to the rise of life on earth Scientific debates don't get much hotter than the one surrounding the origin of organic molecules at the dawn of life on Earth. New findings, based on a reanalysis of a 50-year-old experiment, suggests that ancient volcanic activity was the source of the very first amino acids. In the 1950s, Stanley Miller and Harold Urey of the University of Chicago performed a series of "spark discharge" experiments, in which the researchers applied electrical sparks-- meant to...
  • Did Volcanoes Spark Life on Earth?

    10/17/2008 11:08:42 PM PDT · by neverdem · 27 replies · 975+ views
    ScienceNOW Daily News ^ | 16 October 2008 | Phil Berardelli
    Enlarge ImageHumble beginnings. An experiment in the 1950s with primordial gases and sparks produced some of life's building blocks.Credit: Ned Shaw/Indiana University/Science A once-discarded idea about how life started on our planet has been given a new life of its own, thanks to a serendipitous find. The story traces back to the early 1950s, when chemists Stanley Miller and Harold Urey of the University of Chicago in Illinois tried to recreate the building blocks of life under conditions they thought resembled those on the young Earth. The duo filled a closed loop of glass chambers and tubes with water...
  • From Old Vials, New Hints on Origin of Life

    10/17/2008 7:44:28 AM PDT · by Soliton · 48 replies · 850+ views
    The New York Times ^ | October 16, 2008 | KENNETH CHANG
    A classic experiment exploring the origin of life has, more than a half-century later, yielded new results. The original samples used by Stanley Miller to study the origins of life. In 1953, Stanley L. Miller, then a graduate student of Harold C. Urey at the University of Chicago, put ammonia, methane and hydrogen — the gases believed to be in early Earth’s atmosphere — along with water in a sealed flask and applied electrical sparks to simulate the effects of lightning. A week later, amino acids, the building blocks of proteins, were generated out of the simple molecules. Enshrined in...