Large torsion pendulum with different diameter rods.

Large torsion pendulum with different diameter rods. Note: All rods can be mounted at once, as shown, or just one can be chosen. A Lab Jack is useful in raising and lowering the heavy disk and ring.
UCB Index: 
B+10+5
PIRA Index: 
1Q10.20
Demo Diagram: 
Demo Picture: 

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