Origin of Life: no oxygen (Introduction)
by David Turell 
, Monday, October 07, 2013, 15:27 (3844 days ago) @ David Turell
More information on the levels of oxygen. Life started without oxygen at 3.6 billion years ago. Oxygen levels rose at 2.3 billion years ago. Discussion of the interplay of variious factors:-http://www.nytimes.com/2013/10/03/science/earths-oxygen-a-mystery-easy-to-take-for-granted.html?ref=scienceandtechnology&_r=1&
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- Origin of Life: information? -
David Turell,
2012-12-14, 00:45
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2012-12-24, 15:52
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2012-12-27, 14:57
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- Origin of Life: Defining life -
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- Origin of Life: Very early -
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2013-01-31, 16:02
- Origin of Life: phosphate -
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- Origin of Life: phosphates -
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2013-06-04, 23:22
- Origin of Life: stromatolites -
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2013-05-30, 16:15
- Origin of Life: salt & amino acids -
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2013-04-06, 15:56
- Origin of Life: phosphate -
David Turell,
2013-04-05, 15:01
- Origin of Life: enzymes -
David Turell,
2013-01-31, 16:02
- Origin of Life: fat globules -
David Turell,
2013-01-11, 15:16
- Origin of Life: Very early -
David Turell,
2013-01-04, 15:56
- Origin of Life: Defining life -
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2012-12-27, 17:48
- Origin of Life: flying pigs -
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2012-12-27, 16:02
- Origin of Life: chemical cycles -
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2012-12-27, 14:57
- Origin of Life: software -
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2013-04-21, 15:19
- Origin of Life: cells without walls -
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2013-07-04, 15:56
- Origin of Life: early land life -
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2013-07-23, 15:35
- Origin of Life: early land life -
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2013-07-23, 16:19
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2013-07-23, 18:16
- Origin of Life: early land life -
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2013-07-27, 11:51
- Origin of Life: early land life -
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2013-07-27, 14:47
- Origin of Life: early land life -
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2013-07-27, 22:00
- Origin of Life: early land life -
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2013-07-28, 15:37
- Origin of Life: early land life -
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2013-07-28, 21:37
- Origin of Life: early land life -
dhw,
2013-07-29, 15:09
- Origin of Life: early land life -
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2013-07-30, 11:54
- Origin of Life: early land life -
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2013-07-30, 17:59
- Origin of Life: early land life - David Turell, 2013-07-30, 18:44
- Origin of Life: early land life -
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2013-08-03, 23:55
- Origin of Life: early land life -
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2013-08-04, 20:02
- Origin of Life: early land life -
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2013-08-04, 22:53
- Origin of Life: early land life -
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2013-08-05, 11:25
- Origin of Life: early land life -
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2013-08-07, 14:38
- Origin of Life: early land life -
David Turell,
2013-08-07, 15:27
- Origin of Life: balance of nature - David Turell, 2013-08-07, 19:23
- Origin of Life: early land life -
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2013-08-08, 12:13
- Origin of Life: early land life -
David Turell,
2013-08-08, 15:26
- Origin of Life: early land life -
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2013-08-09, 09:06
- Origin of Life: early land life - David Turell, 2013-08-09, 15:32
- Origin of Life: early land life -
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2013-08-09, 15:53
- Origin of Life: early land life -
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- Origin of Life: proof -
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2013-09-10, 18:35
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- Origin of Life: comets? -
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2013-09-16, 15:02
- Origin of Life: whole cell -
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2013-09-19, 01:01
- Origin of Life: whole cell -
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2013-09-21, 16:08
- Origin of Life: whole cell -
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2013-09-22, 19:07
- Origin of Life: whole cell -
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2013-09-22, 21:32
- Origin of Life: it needs solar system -
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2013-09-25, 15:05
- Origin of Life: no oxygen -
David Turell,
2013-09-26, 15:00
- Origin of Life: no oxygen -
David Turell,
2013-10-07, 15:27
- Origin of Life: miracle? -
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2013-10-13, 15:35
- Origin of Life: miracle? -
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2013-10-14, 16:09
- Origin of Life: miracle? -
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- Origin of Life: miracle? -
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- Origin of Life: man made pipedream -
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- Origin of Life: earliest -
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- Origin of Life: early minerals -
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- Origin of Life: LUCA -
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- Origin of Life: LUCA -
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- Origin of Life: LUCA -
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- Origin of Life: LUCA -
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- Origin of Life: LUCA -
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- Origin of Life: LUCA -
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- Origin of Life: Extreme odds -
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- Origin of Life: Extreme difficulties -
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- Origin of Life: Cold RNA world -
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- Origin of Life: chemical problems -
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2013-12-16, 01:06
- Origin of Life: early minerals -
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2013-11-27, 15:27
- Origin of Life: earliest -
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2013-11-13, 00:49
- Origin of Life: man made pipedream -
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2013-11-06, 00:24
- Origin of Life: man made pipedream -
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- Origin of Life: miracle? -
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2013-10-23, 14:43
- Origin of Life: miracle? -
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2013-10-14, 17:35
- Origin of Life: miracle? -
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2013-10-14, 16:09
- Origin of Life: miracle? -
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2013-10-13, 15:35
- Origin of Life: how oxygen appeared -
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2014-09-05, 16:14
- Origin of Life: Organic chemists don't know how -
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2014-10-15, 15:44
- Origin of Life: Organic chemists don't know how -
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2014-10-16, 03:35
- Origin of Life: Organic chemists don't know how - David Turell, 2014-10-16, 06:18
- Origin of Life: Organic chemists don't know how -
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2014-10-16, 21:28
- Origin of Life: Organic chemists don't know how -
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2014-10-17, 02:21
- Origin of Life: Organic chemists don't know how -
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- Origin of Life: Organic chemists don't know how -
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2014-10-17, 06:04
- Origin of Life: Organic chemists don't know how -
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2014-10-17, 20:46
- Origin of Life: Organic chemists don't know how -
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2014-10-18, 01:19
- Origin of Life: Organic chemists don't know how -
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- Origin of Life: Organic chemists don't know how -
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2014-10-18, 05:05
- Origin of Life: Organic chemists don't know how -
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- Origin of Life: Organic chemists don't know how - David Turell, 2014-10-18, 11:45
- Origin of Life: Organic chemists don't know how -
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- Origin of Life: Organic chemists don't know how -
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2014-10-18, 05:05
- Origin of Life: Organic chemists don't know how -
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- Origin of Life: Organic chemists don't know how -
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- Origin of Life: Organic chemists don't know how -
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- Origin of Life: Organic chemists don't know how -
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- Origin of Life: Organic chemists don't know how - David Turell, 2014-10-17, 18:51
- Origin of Life: Organic chemists don't know how -
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- Origin of Life: Pie in the sky research -
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- Origin of Life: foolishness -
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- Origin of Life: new RNAzyme -
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- Origin of Life: early atmosphere -
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- Origin of Life: early atmosphere -
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- Origin of Life: early atmosphere -
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- Origin of Life: early atmosphere -
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- Origin of Life: early atmosphere -
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- Origin of Life: early atmosphere -
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- Origin of Life: early atmosphere -
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- Origin of Life: early atmosphere -
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- Origin of Life: early atmosphere -
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- Origin of Life: early atmosphere -
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- Origin of Life: early atmosphere -
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- Origin of Life: early atmosphere -
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- Origin of Life: early atmosphere -
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- Origin of Life: early atmosphere -
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- Origin of Life: early atmosphere -
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- Origin of Life: early atmosphere -
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- Origin of Life: early atmosphere -
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- Origin of Life: early atmosphere -
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- Origin of Life: early atmosphere -
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- Origin of Life: early atmosphere -
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- Origin of Life: oil droplets -
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- Origin of Life: zapping by laser -
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2014-12-09, 00:08
- Origin of Life: new RNAzyme -
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2014-12-05, 20:32
- Origin of Life: foolishness -
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2014-11-24, 14:16
- Origin of Life: Continental drift! -
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2014-11-09, 00:18
- Origin of Life: Pie in the sky research -
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2014-10-30, 14:52
- Origin of Life: Organic chemists don't know how -
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2014-10-18, 21:32
- Origin of Life: Organic chemists don't know how -
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- Origin of Life: Organic chemists don't know how -
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- Origin of Life: Organic chemists don't know how -
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2014-10-17, 03:26
- Origin of Life: Organic chemists don't know how -
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2014-10-17, 02:21
- Origin of Life: Organic chemists don't know how -
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2014-10-16, 03:35
- Origin of Life: Organic chemists don't know how -
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2014-10-15, 15:44
- Origin of Life: no oxygen -
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2013-10-07, 15:27
- Origin of Life: no oxygen -
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2013-09-26, 15:00
- Origin of Life: it needs solar system -
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- Origin of Life: whole cell -
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2013-09-22, 21:32
- Origin of Life: whole cell -
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2013-09-22, 19:07
- Origin of Life: whole cell -
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- Origin of Life: whole cell -
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2013-09-16, 15:02
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- Origin of Life: early land life -
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- Origin of Life: early land life not long after the Cambrian -
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- Origin of Life: early land life -
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- Origin of Life: early land life -
David Turell,
2013-08-08, 15:26
- Origin of Life: early land life -
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2013-08-07, 15:27
- Origin of Life: early land life -
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- Origin of Life: early land life -
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- Origin of Life: early land life -
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- Origin of Life: early land life -
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- Origin of Life: early land life -
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- Origin of Life: early land life -
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- Origin of Life: early land life -
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- Origin of Life: early land life -
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- Origin of Life: early land life -
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- Origin of Life: early land life -
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- Origin of Life: early land life -
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- Origin of Life: early land life -
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2013-07-27, 11:51
- Origin of Life: early land life -
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2013-07-23, 18:16
- Origin of Life: early land life -
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2013-07-23, 16:19
- Origin of Life: early land life -
David Turell,
2013-07-23, 15:35
- Origin of Life: cells without walls -
David Turell,
2013-07-04, 15:56
- Origin of Life: information? -
xeno6696,
2013-12-16, 02:19
- Origin of Life: information? - David Turell, 2013-12-16, 05:30
- Origin of Life: zinc -
David Turell,
2012-12-24, 15:52