Greetings...
Looking ahead in my PBS TV schedule, I see that on 31 March Nova will present "The Last Extinction", on the controversial claim that bad things were caused "by the massive breakup of a comet over the Great Lakes region".
AD
http://www.daysknob.com
Search found 95 matches
- Tue Mar 24, 2009 11:14 pm
- Forum: New World
- Topic: 1 inch thick layer of comet impact debris near Sandusky
- Replies: 38
- Views: 32225
- Thu Feb 26, 2009 11:17 pm
- Forum: Old World
- Topic: Neandertal's death, new theory.
- Replies: 121
- Views: 45467
- Thu Feb 26, 2009 8:55 pm
- Forum: Old World
- Topic: Neandertal's death, new theory.
- Replies: 121
- Views: 45467
Hi Minimalist... If I remember correctly (not taking the time to research this right now), the favored hypothesis is that as humans migrated from sunny to northern climes natural selection produced lighter skin (less UV-attenuating melatonin) in response to the need for sunlight to synthesize vitami...
- Wed Apr 30, 2008 8:30 pm
- Forum: Old World
- Topic: Gobekli Tepe
- Replies: 38
- Views: 42351
- Wed Apr 30, 2008 7:36 pm
- Forum: Old World
- Topic: Gobekli Tepe
- Replies: 38
- Views: 42351
- Sun Dec 16, 2007 11:25 pm
- Forum: Archived Discussion Forum
- Topic: Palaeoart integrated in early lithics
- Replies: 14
- Views: 10830
- Fri Dec 14, 2007 10:46 pm
- Forum: Archived Discussion Forum
- Topic: Palaeoart integrated in early lithics
- Replies: 14
- Views: 10830
Hi Manystones et al ... Your website is very well done, and the huge amount of effort that went into it is quite evident. I certainly need to restructure my own and provide a concise and cogent statement of the hypotheses with arguments pro and con. Mine started in 2003 with a simple presentation of...
- Mon Oct 08, 2007 8:08 pm
- Forum: Archived Discussion Forum
- Topic: Peace!
- Replies: 29
- Views: 24453
- Wed Sep 19, 2007 6:14 pm
- Forum: Archived Discussion Forum
- Topic: New finds at Dmanisi
- Replies: 45
- Views: 36847
Hi RS and Beagle... Thanks for that posting! Dmanisi is certainly one of the more important finds in recent years - hominins in an apparently sizeable community quite a distance from Africa about a million years before they were supposed to be anywhere else. So they are thought to have returned to A...
- Sat Sep 01, 2007 12:30 am
- Forum: Archived Discussion Forum
- Topic: 100,000 year old use wear from Pedra Furada, Brazil
- Replies: 62
- Views: 42819
Greetings... Reverting to the original discussion topic, here is a very limited reconstruction, from some 2005 e-mails and copies of e-mails, of what happened to Dr. Robson Bonnichson's determination/documentation of apparent human agency in the Pedra Furada lithics. Rob Bonnichsen had, as is eviden...
- Fri Aug 31, 2007 10:23 pm
- Forum: Archived Discussion Forum
- Topic: Accelerated Evolution?
- Replies: 1
- Views: 3156
Accelerated Evolution?
Greetings... I just received an interesting blurb from ACM TechNews on an evolution simulation at the Weizmann Institute of Science in Israel. The headline: A Computer Simulation Shows How Evolution May Have Speeded Up Weizmann Institute of Science (08/28/07) Here's the URL: http://wis-wander.weizma...
- Sun Aug 26, 2007 1:17 am
- Forum: Archived Discussion Forum
- Topic: Serpent Symbolism
- Replies: 40
- Views: 28507
Hi War Arrow et al ... It's a common theme sure enough. There was a thread around here about a year ago with some pretty interesting discussion of the 'human emerging from (or being devoured in) a serpent maw' imagery in Mexico and Colombia. Can't remember quite who posted it. Was it you AD? Yeah, t...
- Sat Aug 25, 2007 11:45 pm
- Forum: Archived Discussion Forum
- Topic: 100,000 year old use wear from Pedra Furada, Brazil
- Replies: 62
- Views: 42819
Greetings... I'm a bit confused now - thought this thread was on Pedra Furada, and having looked back through some 2005 e-mails, I think I will post an expansion of my observations on the disgraceful treatment of this project by North American archaeologists. But for the moment, let me comment on th...
- Thu Aug 23, 2007 10:10 pm
- Forum: Archived Discussion Forum
- Topic: 100,000 year old use wear from Pedra Furada, Brazil
- Replies: 62
- Views: 42819
Actually, I meant how long would it take to oxidize metal down to the point when it lost virtually all of its magnetic properties Depending on where it landed and spent its time between its deposition and your recovering it, an iron artifact may have survived relatively intact for thousands of year...
- Thu Aug 23, 2007 9:41 am
- Forum: Archived Discussion Forum
- Topic: 100,000 year old use wear from Pedra Furada, Brazil
- Replies: 62
- Views: 42819