re: energy producing experiments

[sm0ky2]

Look at your video,
Watch as the cylinder comes to a stop, frame by frame
Watch the linear distance traveled by the smaller spheres
Dont use the faulty math of the cylinder's rotational velocity.
What velocity are the spheres actually moving at?

[sm0ky2]

If you want to smack that cylinder with 9kJ thats your business..:
But if the small spheres had that energy they would have destroyed the cylinder at the end of the first test

[Delburt Phend]

If the sphere is released it could do damage. Try it yourself.  But the spheres rewrap and quickly give their momentum back to the cylinder.

The tetherball does not increase its speed because it wraps up, it only increases its rate of rotation.

[Delburt Phend]

Can the 'wheel and axle lrn fzx' be used to prove that energy is not a conserved quantity?

Yes: I set up two wheels, with the same drive mass, right by each other. I used the wheels as an Atwood's with the same extra added mass at the 35 mm dia. One wheel accelerated 120 g at the 35 mm diameter and the other accelerated 40 g at 105 mm diameter.

I ran them at the same time and they accelerated at the same rate.

The input energy is producing "two" quantities of energy. ½ * .120 kg * 1 m/sec * 1 m/sec = .06 J   OR  ½ * .04 kg *3 m/sec * 3 m/sec = .18 J

When the same input energy produces two quantities of energy it can not be a conserved quantity.

[Delburt Phend]

I set up the photo gates on the 4 concentric circles experiment. I kept the drive mass at the 35 cm diameter.  This is a light pulley with four radii (lrn fzx axle and wheel). 40 grams at 105 cm diameter is just as easily accelerated as 120 g at 35 cm diameter; but the energy is three times higher. The gate trip times are the same for the 40 grams at the 105 cm diameter as they are for the 120 g at the 35 cm diameter.

Larger radius differences can be used for larger energy production. You could use 30 to 1.

And I hope we can imagine this being 40 metric tons rather than 40 g.

And we have the 'cylinder and spheres' to secure motion from the apparatus.  Times   times    times:    huge huge and huge