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Old 10-03-2012, 05:37 PM   #9421
Bilbo1967
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Call the Earth's radius r feet. The string length around the world is τr feet. (Where τ is 2π.)

Add 10 feet. New string length is τr+10. Radius of new circle with circumference τr+10 is (τr+10)/τ = r+10/τ.

So it will be 10/τ feet above the surface. That's about 1.6 feet.
See, I knew pi was in there somewhere
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Old 10-03-2012, 05:42 PM   #9422
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See, I knew pi was in there somewhere
π is an abomination. τ is the proper circle constant.
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Old 10-03-2012, 05:48 PM   #9423
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π is an abomination. τ is the proper circle constant.
You're preaching to the wrong audience, you're lucky I recognised it as a mathematical constant symbol at all
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Old 10-03-2012, 06:22 PM   #9424
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Correct!

For some reason the answer amazes me. Just 10 ft will lift the string so high off the ground.

C+10=2π(r+x)

Last edited by Fbone; 10-03-2012 at 06:26 PM.
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Old 10-03-2012, 07:34 PM   #9425
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I want to know WHY anyone would want to add 10 feet to the string?


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Old 10-03-2012, 10:14 PM   #9426
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I want to know WHY anyone would want to add 10 feet to the string?


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Perhaps not to strangulate our earth. Remember that the string was barely long enough to reach all the way around the earth.

What I'm interested in is who could spin such a long string in the first place
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Old 10-03-2012, 11:14 PM   #9427
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I can't help thinking about going round bumps and stuff. And what about over valleys? it is already over the ground there??
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Old 10-04-2012, 03:56 AM   #9428
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I can't help thinking about going round bumps and stuff. And what about over valleys? it is already over the ground there??
We're approximating.
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Old 10-04-2012, 04:21 AM   #9429
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OK, I guess it's my turn to pose a question. Hmmm....

Give the names of all the dwarves mentioned in The Hobbit. There are at least 18. Extra points for the names of any Ravens
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Old 10-04-2012, 07:06 AM   #9430
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Bombur, Gloin, Balin, Dori, Nori, Thorin...ummm...been a while since reading this one.
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Old 10-04-2012, 08:35 AM   #9431
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Bombur, Gloin, Balin, Dori, Nori, Thorin...ummm...been a while since reading this one.
All correct. Six points to HomeInMyShoes.

There's at at least another 14 points available!
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Old 10-04-2012, 10:38 AM   #9432
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Doc, Grumpy, Happy, Sleepy, Bashful, Sneezy, and Dopey.
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Old 10-04-2012, 11:03 AM   #9433
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Bombur, Gloin, Balin, Dori, Nori, Thorin...ummm...been a while since reading this one.
Gimli, son of Gloin, (I think). It's been a while since I read it as well. And with the amount of names in that book, it's almost as bad as the Icelandic family sagas

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Old 10-04-2012, 11:03 AM   #9434
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Haha, nice try
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Old 10-04-2012, 11:04 AM   #9435
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Doc, Grumpy, Happy, Sleepy, Bashful, Sneezy, and Dopey.
From the Disney 3D version coming out this fall?
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