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Author Topic:   Quick Questions, Short Answers - No Debate
CRR
Member (Idle past 2321 days)
Posts: 579
From: Australia
Joined: 10-19-2016


Message 444 of 653 (808936)
05-15-2017 3:02 AM


Do Nothing Button
What does it do?

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 Message 447 by Percy, posted 05-29-2017 7:54 AM CRR has not replied

  
CRR
Member (Idle past 2321 days)
Posts: 579
From: Australia
Joined: 10-19-2016


Message 445 of 653 (808937)
05-15-2017 3:10 AM
Reply to: Message 443 by Emotive
03-10-2017 8:33 AM


Human current effective population size
Good Question. In the past with limited mobility the planet's human population was probably broken up into several smaller effective populations with limited gene flow between them. E.g. pre Columbus there was not much flow between America and europe. Although the world is still somewhat separated people are much more mobile these days and there is more gene flow possible. Just think about the recent mass migrations from the Middle east and Northern Africa to Europe. I think the effective population today would be the total world population of 7 billion people.

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CRR
Member (Idle past 2321 days)
Posts: 579
From: Australia
Joined: 10-19-2016


Message 446 of 653 (810388)
05-29-2017 5:55 AM
Reply to: Message 5 by Zucadragon
11-25-2007 8:18 AM


Re: Oort cloud question.
I know the oort cloud has been shown to be the primary source of comets.
The Oort Cloud is hypothetical. It has not been shown to exist let alone be the source of comets.

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 Message 5 by Zucadragon, posted 11-25-2007 8:18 AM Zucadragon has not replied

  
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