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Talk:Counterexamples to an Old Earth (view source)
Revision as of 17:36, September 29, 2010
, 17:36, September 29, 2010no edit summary
::::::[[User:FrankC|FrankC aka ComedyFan]] 08:59, 3 July 2010 (EDT)
::::::[[User:FrankC|FrankC aka ComedyFan]] 08:59, 3 July 2010 (EDT)
* The Earth-Moon collision is not a statemente about a future fact, but a statement about a past event. ''Given the current models'' of tidal friction, and extrapolating backwards ''ceteris paribus'', the Earth-Moon ''would have'' collided (or, being as close as you wish) about 10<sup>9</sup> years ago. [[User:Sunda62|Sunda62]] 13:23, 29 September 2010 (EDT)
* The Earth-Moon collision is not a statemente about a future fact, but a statement about a past event. ''Given the current models'' of tidal friction, and extrapolating backwards ''ceteris paribus'', the Earth-Moon ''would have'' collided (or, being as close as you wish) about 10<sup>9</sup> years ago. [[User:Sunda62|Sunda62]] 13:23, 29 September 2010 (EDT)
** Or, more precisely, about 2 x 10<sup>9</sup> years ago, according to "Lunar nodal tide and distance to the Moon during the Precambrian", J.C.G. Walker, K.J. Zahnle - Nature, 1986. There may be other theories (even negating this); I found that using Google Academic with "tidal friction earth moon collision". [[User:Sunda62|Sunda62]] 13:36, 29 September 2010 (EDT)