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To: SunkenCiv
Spoiler Alert:


































The UCLA Physics Professor loses the $10,000 bet.

I am still unconvinced that the vehicle, which has the propeller turned by the rear wheels, will continue to accelerate on its own as claimed.

It just doesn't pass the basic perpetual motion machine sniff test.

They claim that the effect can only be produced when the vehicle is moving downwind, so that means the vehicle is riding in what would appear to it to be in zero relative wind, so there would be zero wind resistance as the vehicle moves downwind powered by the propeller, which is powered by the rear wheels, which are turned by the forward thrust of the propeller, etc., etc.

I still don't buy it.

11 posted on 07/13/2021 3:46:18 PM PDT by Yo-Yo (is the /sarc tag really necessary?)
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To: Yo-Yo

There is no claim of perpetual motion anywhere in the video by any of its participants.


14 posted on 07/13/2021 3:53:50 PM PDT by SunkenCiv (Imagine an imaginary menagerie manager imagining managing an imaginary menagerie.)
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To: Yo-Yo
They claim that the effect can only be produced when the vehicle is moving downwind, so that means the vehicle is riding in what would appear to it to be in zero relative wind, so there would be zero wind resistance as the vehicle moves downwind powered by the propeller, which is powered by the rear wheels, which are turned by the forward thrust of the propeller, etc., etc.

I watched a different video on this same subject a couple of months ago, and it did a better job explaining how the process worked.

Sailing ships can tack downwind faster than the wind can blow. The propeller blades are just exactly like tacking sails in how they interact with the wind. This gives the blades a velocity greater than the wind speed.

The hard part to grasp is the reference frame, but the mass of the air is still moving even if it is slower than the vehicle, and it is still imparting forward motion to the blades at greater than wind speed.

18 posted on 07/13/2021 4:33:14 PM PDT by DiogenesLamp ("of parents owing allegiance to no other sovereignty.")
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