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→But, but, but...!: unsigned and reply re Miller Urey experiment
"But didn't Miller and Urey show how amino acids probably formed in the early atmospheric conditions?" No, they didn't. First, they set up a gas mixture that might work, with no good reason to suppose that those were the gases that were ever the way earth's atmosphere was put together. Second, they got a racemic mix of amino acids--not the uniformly left-handed mix that we observe in all of life today.
"But didn't Miller and Urey show how amino acids probably formed in the early atmospheric conditions?" No, they didn't. First, they set up a gas mixture that might work, with no good reason to suppose that those were the gases that were ever the way earth's atmosphere was put together. Second, they got a racemic mix of amino acids--not the uniformly left-handed mix that we observe in all of life today.
:The purpose of the Miller Urey experiment was not to perfectly replicate the early atmosphere, but to show in principal that the building blocks of life could be generated abiotically. Clearly, there is still the issue of creating a non-racemic mixture, but some studies show that aqueous clay can cause the left handed amino acids to be preferentially generated.
:The purpose of the Miller Urey experiment was not to perfectly replicate the early atmosphere, but to show in principal that the building blocks of life could be generated abiotically. Clearly, there is still the issue of creating a non-racemic mixture, but some studies show that aqueous clay can cause the left handed amino acids to be preferentially generated. {{unsigned|SSchultz}}
:: I'm not sure that TerryH is correct that they had "no good reason" to select those gases. I believe that they were trying to replicate the conditions that they believe existed or could have existed, although later evidence shows that they got it wrong. But essentially, they showed that the proper building blocks of life could ''not'' be generated, partly because it was a racemic mixture, and partly because they had to artificially trap out the amino acids before they got destroyed again. [[User:Philip J. Rayment|Philip J. Rayment]] 05:58, 27 December 2007 (EST)
== Accusations against creationism and creationists ==
== Accusations against creationism and creationists ==