> So what's wrong with something along my previous idea, tying some logs along the stone and notching them? The notches would effectively hook onto the corner of the tower and the whole thing would pivot round until it fell cleanly.
I like the principle, but the problem is how to fasten the logs to the stone. When the stone reaches the angle at which it would have slipped, it is going to try to slip along the logs. The only thing restraining it is friction. For the block not to slip along the logs the rope has to increase the contact force with the logs to a point that does no exceed limiting friction. For a coefficient of friction of 1 the binding would have to produce 40 tons of pressure between the block and its logs in order to support it at the vertical. I know we dont't need to go that far, but the coefficient is probably less than 1 and we may need to get to 80 degrees or so. Of course 40 turns of rope around the block would mean that the average strain on the rope would only be 1 ton. Do we know what kind of ropes were available at the time and how thick a 1 ton rope of that era would be?
Actually the same argument applies to Gordon's suggestion of using wedged mortice and tenons. Would they be strong enough to increase the frictional force sufficiently?
Reply | with quote | Posted by Steve Gray 30th August 2003ce 00:22 |
Stone Shifting 2 (nigelswift, Aug 26, 2003, 17:00)- Re: Stone Shifting 2 (Jane, Aug 26, 2003, 17:16)
- Re: Stone Shifting 2 (Steve Gray, Aug 26, 2003, 17:46)
- Re: Stone Shifting 2 (GordonP, Aug 26, 2003, 20:44)
- Re: Stone Shifting 2 (FourWinds, Aug 27, 2003, 11:24)
- Re: Stone Shifting 2 (nigelswift, Aug 29, 2003, 09:10)
- Surely it's ... (FourWinds, Aug 29, 2003, 09:14)
- Re: Surely it's ... (nigelswift, Aug 29, 2003, 09:17)
- Computer Model Update (Steve Gray, Aug 29, 2003, 12:37)
- Re: Rotation (GordonP, Aug 29, 2003, 18:11)
- Re: Phase one (GordonP, Aug 29, 2003, 18:31)
- Re: Rotation (Steve Gray, Aug 29, 2003, 18:36)
- Re: Rotation (nigelswift, Aug 29, 2003, 18:42)
- Re: Rotation (GordonP, Aug 29, 2003, 19:06)
- Re: Rotation (Steve Gray, Aug 30, 2003, 00:22)
- Tower rotation? (jimit, Aug 30, 2003, 14:40)
- Re: Stone Shifting 2 (GordonP, Aug 29, 2003, 22:32)
- Steve's idea to fix a pivot log under the stone (nigelswift, Aug 30, 2003, 08:24)
- Which Method? (nigelswift, Aug 31, 2003, 07:09)
- Pi in the sky (baza, Aug 31, 2003, 17:44)
- Re: Stone Shifting 2 (jimit, Sep 01, 2003, 19:39)
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