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A Screw Loose (Posted on 2004-12-25) Difficulty: 2 of 5
Consider a pair of identical (typical) screws and held in opposite hands: the right pointed to your left, the left pointed to your right.

Then place them adjacent to each other (the one in your right hand "on top"), and "interleave" their helical threads together.

If I move the bolts around each other as one would twiddle ones thumbs (the top one comes toward you and the bottom one away from you), holding each screw firmly by the head so that it does not rotate, do the heads:

a) move inward
b) move outward
c) remain the same distance from each other?

You should determine the answer without resorting to the actual test

See The Solution Submitted by SilverKnight    
Rating: 4.0000 (3 votes)

Comments: ( Back to comment list | You must be logged in to post comments.)
re(2): umm... | Comment 3 of 8 |
(In reply to re: umm... by Penny)

Penny said: "I don't think it was cheating, as long as you didn't do any actual screwing.  "


  Posted by Larry on 2004-12-27 03:47:09
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