Great stuff. I'm wondering, are you planning any sort of damping for this? It's nice to see a steady-state deflection rather than a new center of oscillation. Not necessary, but I think it makes for a better visualization.
I agree, and am looking at doing a version with damping. Based on my previous videos, I expect that everything I include will be picked at by critics, so I'm planning to do multiple versions of the final data collection process. Thanks for your interest and ideas!
As you discovered, length has a definite effect on the K value you get. It's similar to calculating the elastic elongation in a spring. If you take a spring and cut it in half, the new spring has half the spring constant as the longer one. The effect should be almost linear.
You should actually use the equation for the Cavendish derived G value. When you know the equation, then you know that oscillation angle and oscillation time are opposites, so the torsion constant of the material is irrelevant here.
Great stuff. I'm wondering, are you planning any sort of damping for this? It's nice to see a steady-state deflection rather than a new center of oscillation. Not necessary, but I think it makes for a better visualization.
I agree, and am looking at doing a version with damping. Based on my previous videos, I expect that everything I include will be picked at by critics, so I'm planning to do multiple versions of the final data collection process. Thanks for your interest and ideas!
Don't let the critics get at you, but they can be a great driver to give you more ideas of things to try!
My thoughts, exactly!
As you discovered, length has a definite effect on the K value you get. It's similar to calculating the elastic elongation in a spring. If you take a spring and cut it in half, the new spring has half the spring constant as the longer one. The effect should be almost linear.
This was my thinking as well. I must have been reading from sources that were describing factors that affect the K value per unit of length.
You should actually use the equation for the Cavendish derived G value. When you know the equation, then you know that oscillation angle and oscillation time are opposites, so the torsion constant of the material is irrelevant here.
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