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Author Topic: Shifted Levers  (Read 2971 times)
Jr. Member
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Posts: 87
Shifted Levers video: https://www.youtube.com/watch?v=8TniRMwL2Vg
The combination of two triple levers (black) with one shifted lower, creates a significant overbalancing effect on the left. The model was built to illustrate the original idea that is taken from: https://www.youtube.com/watch?v=srBbJSzaqOg
   

Group: Elite
Hero Member
******

Posts: 1787
It just looks overbalanced.

The weight of each bar/flag is applied equally to the arm it is attached to.

Since each bar/flag weighs the same (assumed) the same weight is applied at all three points.

One could argue that the increased distance from the mechanism center to an extended flag creates a higher leverage on the whole mechanism but it doesn't. The effect of higher leverage is defeated by the combined joints.



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"As far as the laws of mathematics refer to reality, they are not certain; as far as they are certain, they do not refer to reality." - Einstein

"What we observe is not nature itself, but nature exposed to our method of questioning." - Werner Heisenberg
   

Group: Experimentalist
Hero Member
*****

Posts: 2232
It is a clever optical illusion. The real center of rotation of the "flags" is not where you think it is ;) How many flags are going uphill to going down hill? it can't work, there is no gain in weight on one side, only a loss O0

Run the vid in slow motion and look at the flags only.

The motion is run by an external means, not the flags.

regards

Mike 8)


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"All truth passes through three stages. First, it is ridiculed, second it is violently opposed, and third, it is accepted as self-evident."
Arthur Schopenhauer, Philosopher, 1788-1860

As a general rule, the most successful person in life is the person that has the best information.
   
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