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11-24-2015, 02:45 PM
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#21
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Thinks s/he gets paid by the post
Join Date: Sep 2014
Location: The Great Wide Open
Posts: 3,804
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Regardless, he should take lots of temp, CO2 readings and pictures. Cuz if and when he gets back to normal time, he should have some proof of global cooling/warming.
Then your next book can be about his adventures while trying to avoid assassination by the dreamer/alarmists or the deniers.
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12-01-2015, 03:42 PM
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#22
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Give me a museum and I'll fill it. (Picasso) Give me a forum ...
Join Date: Jun 2006
Posts: 12,880
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I've figured out a way he can get a clue: Erosion.
If he traveled back 65 million years, the rivers and hills near his location would be totally different. Yes, they'll be different, but not 65 million years different.
Maybe.
__________________
Al
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12-01-2015, 07:16 PM
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#24
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Give me a museum and I'll fill it. (Picasso) Give me a forum ...
Join Date: Jun 2006
Posts: 12,880
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Quote:
Originally Posted by jjquantz
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That will work. He can notice that the big dipper looks about the same. Thanks.
__________________
Al
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12-01-2015, 07:58 PM
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#25
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Thinks s/he gets paid by the post
Join Date: Sep 2014
Location: The Great Wide Open
Posts: 3,804
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I'm not so sure on your erosion theory. Here in winemaker country, the surface that we presently walk on is 65 million years old. Everything that was above us was eroded away into the Ohio/ Mississippi River valley over the ages to become the south.
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12-02-2015, 11:16 AM
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#26
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Give me a museum and I'll fill it. (Picasso) Give me a forum ...
Join Date: Jun 2006
Posts: 12,880
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Well, the bluff near our house erodes back, on average, a foot per year:
So, in 65 million years, that's ... carry the one ... a lot!
__________________
Al
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12-02-2015, 03:16 PM
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#27
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Moderator Emeritus
Join Date: Oct 2007
Location: Portland
Posts: 4,946
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Time traveling over millions of years? Don't forget to allow for the rise and subsidence of land, continental drift (*SPLASH*) and such.
Oh, and if your time travel machine doesn't have some means of adjusting it's position in space, a good spacesuit and supplies might be handy, just in case you come out where the Earth isn't. (Orbital motion of the Earth, movement of the Solar System through the galaxy, motion of the entire galaxy, cosmological inflation, etc)
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12-02-2015, 03:30 PM
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#28
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Moderator
Join Date: Feb 2010
Location: Flyover country
Posts: 25,356
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Quote:
Originally Posted by M Paquette
if your time travel machine doesn't have some means of adjusting its position in space, a good spacesuit and supplies might be handy, just in case you come out where the Earth isn't.
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One of the principal reasons I refuse to read anything involving time travel.
Almost exactly 100 years ago, Einstein knocked over that particular applecart by explaining that time only exists as part of the composite entity "spacetime" but that insight is still disregarded by most. Understandably, since the math is so fiendishly hard, but still ...
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