reposting some deleted stuff~
Intelstan
the Miller-Urey experiment would not be a good representation of the ancient ocean/atmosphere because of the super high concentration of compounds which existed in the consealed flask
lemme just quote what was "created" in the experiment from wiki (not my favorite but ya i am just too lazy)
引用:
The experiment used water (H2O), methane (CH4), ammonia (NH3) and hydrogen (H2).
...
Nucleic acids (DNA, RNA) themselves were not formed.
As observed in all consequent experiments, both left-handed (L) and right-handed (D) optical isomers were created in a racemic mixture. Virtually all amino acids in the proteins of living cells are left-handed amino acids.
Any right-handed amino acids, for the most part, are poisonous to the construction of the protein, causing it to unravel. Equal amounts of left- and right-handed amino acids would not be an environment friendly to life.
No life was ever created (out of "nothing") by humans
i think i have partly answered notgoddy's question here also?
Also, regarding the whole "ancient atomosphere" hypotheses,
there are much debate about what what when how why of the environment.
How can they really know it was around 4 billion years ago that all these had happened (if they did)
and how can they know how exactly the environment was like?
(There exists much circular arguments in this field,
e.g. for life to have begun on its own, the environment must be oxygen-less etc
which assumes that life DID begin on its own)
引用:
Although lightning storms are thought to have been very common in the primordial atmosphere, they are not thought to have been as common as the amount of electricity used by the Miller-Urey experiment implied. These factors suggest that much lower concentrations of biochemicals would have been produced on Earth than was originally predicted
We cannot just simply assume that there was no creator (be it a deity or aliens or other sources) |
發表於 2008-8-20 10:22
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*oh well
