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Groups > sci.physics.relativity > #613084
| From | Athel Cornish-Bowden <athel.cb@gmail.com> |
|---|---|
| Newsgroups | sci.physics.relativity |
| Subject | Re: If the Earth rotation has been slowing down |
| Date | 2023-06-17 11:43 +0200 |
| Message-ID | <kf5dh6Fin93U1@mid.individual.net> (permalink) |
| References | (3 earlier) <8ab65ddb-430d-42e8-8569-3b876fb8560dn@googlegroups.com> <208aaf05-822f-419c-a7b6-d708172c5fd5n@googlegroups.com> <a952192a-0e84-4700-b6a9-7c6c9f7f974dn@googlegroups.com> <6697861c-cf11-4a86-9f70-5ac874f83e5dn@googlegroups.com> <u6ij0k$ufqe$1@dont-email.me> |
On 2023-06-16 21:08:53 +0000, Volney said: > On 6/16/2023 2:55 PM, RichD wrote: >> On June 16, patdolan wrote: >>> We also have the mathematical demonstration from fine young, acclaimed, and >>> presumably atheist mathematicians >>> ( here: https://youtu.be/Fm0hOex4psA?t=974 ) that all people >>> on earth today are descended from a single mating pair of humans who lived >>> around the time of Noah. >> >> A single pair, yes, but not necessarily a mating pair. No proof that >> they "knew" each other - >> > > There's "Y chromosome Adam" and "Mitochondrial Eve", who were the most > recent common ancestor of all men's Y Chromosome and everyone's > mitochondrial DNA respectively. By knowing the mutation rates in the Y > chromosome/mitochondrial DNA respectively, they can estimate how long > ago they lived. I don't know the estimates but I do know they're > significantly different. Not only weren't they a mating pair, they > didn't even live during the same time. Very important, but I don't suppose patdolan kows it, as he appears to know litte about anything. Even without measurements of mutation rates one could predict that they coudn't have been contemporaries, given the great difference in fecundity between men (typically zero (very frequent) or one surviving male children, up to hundreds, for very rare men) and women (typically one or two surviving female children, never hundreds). > There is a genetic bottleneck from about 70,000 years ago when there > was a near-extinction event for humans (a volcano I think) and all > humans alive now are descended from a rather small population (a few > thousand breeding pairs) which survived it. -- athel -- biochemist, not a physicist, but detector of crackpots
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If the Earth rotation has been slowing down "mitchr...@gmail.com" <mitchrae3323@gmail.com> - 2023-06-14 20:25 -0700
Re: If the Earth rotation has been slowing down patdolan <patdolan@comcast.net> - 2023-06-14 20:48 -0700
Re: If the Earth rotation has been slowing down Tom Roberts <tjoberts137@sbcglobal.net> - 2023-06-14 23:22 -0500
Re: If the Earth rotation has been slowing down patdolan <patdolan@comcast.net> - 2023-06-15 04:07 -0700
Re: If the Earth rotation has been slowing down patdolan <patdolan@comcast.net> - 2023-06-15 19:24 -0700
Re: If the Earth rotation has been slowing down patdolan <patdolan@comcast.net> - 2023-06-16 02:59 -0700
Re: If the Earth rotation has been slowing down Athel Cornish-Bowden <athel.cb@gmail.com> - 2023-06-16 15:04 +0200
Re: If the Earth rotation has been slowing down patdolan <patdolan@comcast.net> - 2023-06-16 07:52 -0700
Re: If the Earth rotation has been slowing down Athel Cornish-Bowden <athel.cb@gmail.com> - 2023-06-16 17:56 +0200
Re: If the Earth rotation has been slowing down patdolan <patdolan@comcast.net> - 2023-06-16 09:38 -0700
Re: If the Earth rotation has been slowing down Athel Cornish-Bowden <athel.cb@gmail.com> - 2023-06-16 18:46 +0200
Re: If the Earth rotation has been slowing down patdolan <patdolan@comcast.net> - 2023-06-16 09:55 -0700
Re: If the Earth rotation has been slowing down RichD <r_delaney2001@yahoo.com> - 2023-06-16 11:55 -0700
Re: If the Earth rotation has been slowing down patdolan <patdolan@comcast.net> - 2023-06-16 13:10 -0700
Re: If the Earth rotation has been slowing down Volney <volney@invalid.invalid> - 2023-06-16 17:08 -0400
Re: If the Earth rotation has been slowing down Richard Hertz <hertz778@gmail.com> - 2023-06-16 14:21 -0700
Re: If the Earth rotation has been slowing down patdolan <patdolan@comcast.net> - 2023-06-16 17:24 -0700
Re: If the Earth rotation has been slowing down Volney <volney@invalid.invalid> - 2023-06-17 08:32 -0400
Re: If the Earth rotation has been slowing down nospam@de-ster.demon.nl (J. J. Lodder) - 2023-06-17 19:30 +0200
Re: If the Earth rotation has been slowing down Athel Cornish-Bowden <athel.cb@gmail.com> - 2023-06-17 19:36 +0200
Re: If the Earth rotation has been slowing down nospam@de-ster.demon.nl (J. J. Lodder) - 2023-06-17 19:30 +0200
Re: If the Earth rotation has been slowing down patdolan <patdolan@comcast.net> - 2023-06-17 14:59 -0700
Re: If the Earth rotation has been slowing down Volney <volney@invalid.invalid> - 2023-06-18 01:15 -0400
Re: If the Earth rotation has been slowing down Homero Arendonk <kroo@okorooar.ad> - 2023-06-18 11:28 +0000
Re: If the Earth rotation has been slowing down Athel Cornish-Bowden <athel.cb@gmail.com> - 2023-06-17 11:43 +0200
Re: If the Earth rotation has been slowing down patdolan <patdolan@comcast.net> - 2023-06-17 02:55 -0700
Re: If the Earth rotation has been slowing down Athel Cornish-Bowden <athel.cb@gmail.com> - 2023-06-17 16:30 +0200
Re: If the Earth rotation has been slowing down Python <python@invalid.org> - 2023-06-17 16:56 +0200
Re: If the Earth rotation has been slowing down Herbert Marqueringh <nhmm@rruarhei.te> - 2023-06-17 12:40 +0000
Re: If the Earth rotation has been slowing down nospam@de-ster.demon.nl (J. J. Lodder) - 2023-06-16 12:01 +0200
Re: If the Earth rotation has been slowing down Athel Cornish-Bowden <athel.cb@gmail.com> - 2023-06-16 15:06 +0200
Re: If the Earth rotation has been slowing down "mitchr...@gmail.com" <mitchrae3323@gmail.com> - 2023-06-15 19:43 -0700
Re: If the Earth rotation has been slowing down Sylvia Else <sylvia@email.invalid> - 2023-06-15 22:30 +1000
Re: If the Earth rotation has been slowing down The Starmaker <starmaker@ix.netcom.com> - 2023-06-15 08:32 -0700
Re: If the Earth rotation has been slowing down The Starmaker <starmaker@ix.netcom.com> - 2023-06-16 20:37 -0700
Re: If the Earth rotation has been slowing down nospam@de-ster.demon.nl (J. J. Lodder) - 2023-06-15 17:45 +0200
Re: If the Earth rotation has been slowing down "mitchr...@gmail.com" <mitchrae3323@gmail.com> - 2023-06-15 19:46 -0700
Re: If the Earth rotation has been slowing down nospam@de-ster.demon.nl (J. J. Lodder) - 2023-06-16 12:01 +0200
Re: If the Earth rotation has been slowing down "mitchr...@gmail.com" <mitchrae3323@gmail.com> - 2023-06-16 14:33 -0700
Re: If the Earth rotation has been slowing down Paparios <mrios@ing.puc.cl> - 2023-06-15 19:58 -0700
Re: If the Earth rotation has been slowing down Thomas Heger <ttt_heg@web.de> - 2023-06-16 07:07 +0200
Re: If the Earth rotation has been slowing down nospam@de-ster.demon.nl (J. J. Lodder) - 2023-06-16 12:01 +0200
Re: If the Earth rotation has been slowing down Athel Cornish-Bowden <athel.cb@gmail.com> - 2023-06-16 15:08 +0200
Re: If the Earth rotation has been slowing down Thomas Heger <ttt_heg@web.de> - 2023-06-17 08:52 +0200
Re: If the Earth rotation has been slowing down Athel Cornish-Bowden <athel.cb@gmail.com> - 2023-06-17 11:31 +0200
Re: If the Earth rotation has been slowing down nospam@de-ster.demon.nl (J. J. Lodder) - 2023-06-17 19:30 +0200
Re: If the Earth rotation has been slowing down Thomas Heger <ttt_heg@web.de> - 2023-06-18 07:02 +0200
Re: If the Earth rotation has been slowing down patdolan <patdolan@comcast.net> - 2023-06-17 02:35 -0700
Re: If the Earth rotation has been slowing down Thomas Heger <ttt_heg@web.de> - 2023-06-18 06:56 +0200
Re: If the Earth rotation has been slowing down nospam@de-ster.demon.nl (J. J. Lodder) - 2023-06-17 16:35 +0200
Re: If the Earth rotation has been slowing down RichD <r_delaney2001@yahoo.com> - 2023-06-20 11:52 -0700
Re: If the Earth rotation has been slowing down Tom Roberts <tjoberts137@sbcglobal.net> - 2023-06-20 16:46 -0500
Re: If the Earth rotation has been slowing down "mitchr...@gmail.com" <mitchrae3323@gmail.com> - 2023-06-20 15:21 -0700
Re: If the Earth rotation has been slowing down Maciej Wozniak <maluwozniak@gmail.com> - 2023-06-20 22:29 -0700
Re: If the Earth rotation has been slowing down nospam@de-ster.demon.nl (J. J. Lodder) - 2023-06-21 11:51 +0200
Re: If the Earth rotation has been slowing down RichD <r_delaney2001@yahoo.com> - 2023-06-22 15:05 -0700
Re: If the Earth rotation has been slowing down nospam@de-ster.demon.nl (J. J. Lodder) - 2023-06-23 11:49 +0200
Re: If the Earth rotation has been slowing down RichD <r_delaney2001@yahoo.com> - 2023-06-24 13:18 -0700
Re: If the Earth rotation has been slowing down nospam@de-ster.demon.nl (J. J. Lodder) - 2023-06-25 18:39 +0200
Re: If the Earth rotation has been slowing down RichD <r_delaney2001@yahoo.com> - 2023-06-26 14:55 -0700
Re: If the Earth rotation has been slowing down nospam@de-ster.demon.nl (J. J. Lodder) - 2023-06-28 13:32 +0200
Re: If the Earth rotation has been slowing down RichD <r_delaney2001@yahoo.com> - 2023-06-28 10:58 -0700
Re: If the Earth rotation has been slowing down "mitchr...@gmail.com" <mitchrae3323@gmail.com> - 2023-06-29 21:07 -0700
Re: If the Earth rotation has been slowing down nospam@de-ster.demon.nl (J. J. Lodder) - 2023-06-30 11:45 +0200
Re: If the Earth rotation has been slowing down "mitchr...@gmail.com" <mitchrae3323@gmail.com> - 2023-06-30 09:30 -0700
Re: If the Earth rotation has been slowing down nospam@de-ster.demon.nl (J. J. Lodder) - 2023-06-30 22:49 +0200
Re: If the Earth rotation has been slowing down Paul Alsing <pnalsing@gmail.com> - 2023-06-30 17:03 -0700
Re: If the Earth rotation has been slowing down "mitchr...@gmail.com" <mitchrae3323@gmail.com> - 2023-06-16 09:32 -0700
Re: If the Earth rotation has been slowing down nospam@de-ster.demon.nl (J. J. Lodder) - 2023-06-17 16:35 +0200
Re: If the Earth rotation has been slowing down "mitchr...@gmail.com" <mitchrae3323@gmail.com> - 2023-06-17 10:09 -0700
Re: If the Earth rotation has been slowing down nospam@de-ster.demon.nl (J. J. Lodder) - 2023-06-17 21:14 +0200
Re: If the Earth rotation has been slowing down "mitchr...@gmail.com" <mitchrae3323@gmail.com> - 2023-06-17 17:50 -0700
Re: If the Earth rotation has been slowing down nospam@de-ster.demon.nl (J. J. Lodder) - 2023-06-18 13:50 +0200
Re: If the Earth rotation has been slowing down "mitchr...@gmail.com" <mitchrae3323@gmail.com> - 2023-06-18 17:18 -0700
Re: If the Earth rotation has been slowing down nospam@de-ster.demon.nl (J. J. Lodder) - 2023-06-19 11:39 +0200
Re: If the Earth rotation has been slowing down Paparios <mrios@ing.puc.cl> - 2023-06-19 08:19 -0700
Re: If the Earth rotation has been slowing down "mitchr...@gmail.com" <mitchrae3323@gmail.com> - 2023-06-19 11:08 -0700
Re: If the Earth rotation has been slowing down nospam@de-ster.demon.nl (J. J. Lodder) - 2023-06-19 22:16 +0200
Re: If the Earth rotation has been slowing down "mitchr...@gmail.com" <mitchrae3323@gmail.com> - 2023-06-19 15:26 -0700
Re: If the Earth rotation has been slowing down nospam@de-ster.demon.nl (J. J. Lodder) - 2023-06-20 11:25 +0200
Re: If the Earth rotation has been slowing down Volney <volney@invalid.invalid> - 2023-06-19 17:32 -0400
Re: If the Earth rotation has been slowing down nospam@de-ster.demon.nl (J. J. Lodder) - 2023-06-20 11:25 +0200
Re: If the Earth rotation has been slowing down "mitchr...@gmail.com" <mitchrae3323@gmail.com> - 2023-06-20 11:08 -0700
Re: If the Earth rotation has been slowing down Volney <volney@invalid.invalid> - 2023-06-18 01:31 -0400
Re: If the Earth rotation has been slowing down Jon-Michael Roijacker <rjee@hhkajcnc.oo> - 2023-06-18 11:47 +0000
Re: If the Earth rotation has been slowing down Volney <volney@invalid.invalid> - 2023-06-16 01:11 -0400
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