THE CLOCK OF THE LONG NOw - Long Now Foundation
THE CLOCK OF THE LONG NOw - Long Now Foundation
THE CLOCK OF THE LONG NOw - Long Now Foundation
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Torsionpedulum4.nb 3<br />
TorsionSpringConstantRose <br />
h b 3 ShearModulus 3 1.8 b h L ElasticModulus h^5 b L<br />
0.0793945 inch pound 0.00182101 inch pound 2<br />
TorsionSpringConstantRose 2 TorsionSpringConstantRose . <br />
0.0535616<br />
2<br />
<br />
<br />
4 2<br />
<br />
2<br />
N<br />
0<br />
2<br />
<br />
<br />
2 Sin 2<br />
0.46267<br />
Stress limits of spring<br />
<br />
<br />
2<br />
<br />
T TorsionSpringConstant 2<br />
0.105132 inch pound<br />
TorsionStrength 60000 pound inch^2<br />
60000 pound<br />
<br />
inch 2<br />
Again according to Mark's<br />
safetorque 2b 2 h .43 TensileStrength 9 2<br />
0.298611 inch pound<br />
According to Roak
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