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Author
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Topic: The Opposition
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tuxedoMask
Knowflake Posts: 994
From:
Registered: May 2011
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posted November 14, 2011 07:22 AM
  
Although it would be impossible to do this on earth, you actually could do this on the moon. The moon has a cold core and it also doesn't have any oceans or groundwater to mess things up. In addition, the moon has no atmosphere, so the tunnel would have a nice vacuum in it that eliminates aerodynamic drag.So, imagine that the tunnel through the moon is 20 feet (7 meters) in diameter. Down one side is a ladder. If you were to climb down the ladder, what you would find is that your weight decreases. Gravity is caused by objects attracting one another with their mass (see Question 232). As you descend into the tunnel, more and more of the moon's mass is above you, so it attracts you upward. Once you climbed down to the center of the moon you would be weightless. The mass of the moon is all around you and attracting you equally, so it all cancels out and you would feel weightless. If you were to actually leap into the tunnel and allow yourself to fall, you would accelerate toward the center to a very high speed. Then you would zoom through the center and start decelerating. You would eventually stop when you reached the tunnel's lip on the other side of the moon, and then you would start falling back down the tunnel in the other direction. You would oscillate back and forth like this forever. If you could do this on earth, one amazing effect would be the ease of travel. The diameter of the earth is about 12,700 kilometers (7,800 miles). If you drilled the tunnel straight through the center and could create a vacuum inside, anything you dropped into the tunnel would reach the other side of the planet in just 42 minutes!
IP: Logged |
anongrl10
Knowflake Posts: 1363
From: won't_disclose
Registered: Sep 2011
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posted November 14, 2011 07:29 AM
The above is from: http://science.howstuffworks.com/environmental/earth/geophysics/question373.htm IP: Logged |
tuxedoMask
Knowflake Posts: 994
From:
Registered: May 2011
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posted November 14, 2011 01:15 PM
^ IS NOT!!!!!!!!! i wrote that junk with MY BARE HANDS!!!!!!!!!!!!!!IP: Logged |
tuxedoMask
Knowflake Posts: 994
From:
Registered: May 2011
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posted November 14, 2011 07:02 PM
*bump for general interest.IP: Logged |
RedScorp
Knowflake Posts: 494
From: Ontario, Canada!
Registered: Jul 2011
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posted November 14, 2011 09:53 PM
 While on assignment in Namibia for National Geographic magazine, Frans Lanting captured this surreal landscape image in a location called Dead Vlei. Due to the nature of the severe lighting in the frame, the photograph appears like a painting IP: Logged |
mintgirl123
Knowflake Posts: 832
From:
Registered: Nov 2009
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posted November 14, 2011 10:05 PM
lol probably would be a good idea to credit where you took the info, since you clearly copy and pasted =XIP: Logged |
curiouswoman
Knowflake Posts: 100
From: on earth
Registered: Sep 2011
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posted November 15, 2011 12:31 AM
http://ngm.nationalgeographic.com/2011/06/namibia-park/behind-the-photo IP: Logged |
RedScorp
Knowflake Posts: 494
From: Ontario, Canada!
Registered: Jul 2011
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posted November 15, 2011 12:38 AM
quote:
Originally posted by tuxedoMask:
^ IS NOT!!!!!!!!! i wrote that junk with MY BARE HANDS!!!!!!!!!!!!!!
LOL "junk". And speaking of bare hands...  IP: Logged |
tuxedoMask
Knowflake Posts: 994
From:
Registered: May 2011
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posted November 15, 2011 01:01 AM
quote:
Originally posted by RedScorp:
[B] LOL "junk".And speaking of bare hands...
oh, those chinese.. they so chrazeee 
http://www.linda-goodman.com/ubb/Forum24/HTML/210534.html
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RedScorp
Knowflake Posts: 494
From: Ontario, Canada!
Registered: Jul 2011
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posted November 15, 2011 01:02 AM
quote:
Originally posted by tuxedoMask:
oh, those chinese.. they so chrazeee
http://www.linda-goodman.com/ubb/Forum24/HTML/210534.html
I saw that!  But I don't want to like, seem like I'm always commenting on your threads. Like, I'd like to, but what if you don't want me to? So I just comment most of the time. IP: Logged |
Lindaland
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