http://creation.com/age-of-the-earth
Aurinko on ollut alkuvaiheessa himmeä - mutta samaan aikaan toisaalla - vesi on ollut nestemäistä.
89.
The faint young sun paradox.
According to stellar evolution theory, as the sun’s core transforms from hydrogen to helium by means of nuclear fusion, the mean molecular weight increases, which would compress the sun’s core increasing fusion rate. The upshot is that over several billion years, the sun ought to have brightened 40% since its formation and 25% since the appearance of life on earth. For the latter, this translates into a 16–18 ºC temperature increase on the earth. The current average temperature is 15 ºC, so the earth ought to have had a -2 ºC or so temperature when life appeared.
http://en.wikipedia.org/wiki/Faint_young_Sun_paradox
Early Faint Sun Paradox Explained?
Saturnuksen kuu Titan antaa vihjeen siitä, miten paradoksi voidaan selvittää.
http://www.universetoday.com/65725/early-faint-sun-paradox-explained/
No climate paradox under the faint early Sun
http://www.nature.com/nature/journal/v464/n7289/abs/nature08955.html
74.
Methane on Titan
the methane should all be gone because of UV-induced breakdown. The products of photolysis should also have produced a huge sea of ethane. As the original Astrobiology paper said, “If the chemistry on Titan has gone on in steady-state over the age of the solar system, then we would predict that a layer of ethane 300 to 600 meters thick should be deposited on the surface.” No such sea is seen, which is consistent with Titan being a tiny fraction of the claimed age of the solar system.
Eli UV-säteilyn olisi pitänyt hajottaa metaanin 300-600 metriä paksuksi etaanimereksi.
http://www.universetoday.com/40242/titans-haze-acts-as-ozone-layer/
The authors suggest that triacetylene, an organic molecule that could act as a shield for ultraviolet radiation, may serve as the building block for creating complex molecules in Titan’s atmosphere.
Toisaalta siellä on etaanijärvi:
http://www.tekniikkatalous.fi/innovaatiot/avaruus/cassini vahvisti lopullisesti titanin tasangot hiilivetyjarviksi/a117932
Aurinko on ollut alkuvaiheessa himmeä - mutta samaan aikaan toisaalla - vesi on ollut nestemäistä.
89.
The faint young sun paradox.
According to stellar evolution theory, as the sun’s core transforms from hydrogen to helium by means of nuclear fusion, the mean molecular weight increases, which would compress the sun’s core increasing fusion rate. The upshot is that over several billion years, the sun ought to have brightened 40% since its formation and 25% since the appearance of life on earth. For the latter, this translates into a 16–18 ºC temperature increase on the earth. The current average temperature is 15 ºC, so the earth ought to have had a -2 ºC or so temperature when life appeared.
http://en.wikipedia.org/wiki/Faint_young_Sun_paradox
Early Faint Sun Paradox Explained?
Saturnuksen kuu Titan antaa vihjeen siitä, miten paradoksi voidaan selvittää.
http://www.universetoday.com/65725/early-faint-sun-paradox-explained/
No climate paradox under the faint early Sun
http://www.nature.com/nature/journal/v464/n7289/abs/nature08955.html
74.
Methane on Titan
the methane should all be gone because of UV-induced breakdown. The products of photolysis should also have produced a huge sea of ethane. As the original Astrobiology paper said, “If the chemistry on Titan has gone on in steady-state over the age of the solar system, then we would predict that a layer of ethane 300 to 600 meters thick should be deposited on the surface.” No such sea is seen, which is consistent with Titan being a tiny fraction of the claimed age of the solar system.
Eli UV-säteilyn olisi pitänyt hajottaa metaanin 300-600 metriä paksuksi etaanimereksi.
http://www.universetoday.com/40242/titans-haze-acts-as-ozone-layer/
The authors suggest that triacetylene, an organic molecule that could act as a shield for ultraviolet radiation, may serve as the building block for creating complex molecules in Titan’s atmosphere.
Toisaalta siellä on etaanijärvi:
http://www.tekniikkatalous.fi/innovaatiot/avaruus/cassini vahvisti lopullisesti titanin tasangot hiilivetyjarviksi/a117932
Vastaukset 1
Vanhimmat
Etaania? Jos olisikin etanolia, niin Suomellakin olisi ollut oma avaruusohjelma jo ajat sitten.