Gadolinium Magnet Generator.

[nestor89]

The temperature only has to rise a tiny amount for the cube to unfasten and freewheel. All the rotor needs is a correctly spaced cooler Gadolinium cube in front of it to push the demagnetized cube free of the field and voilà! Perpetual motion.

No. Even in paramagnetic state is is still be drawn by a permanent magnet. If the Curie temperature is reached the cube will not be unfasten. Ferromagnetism is stronger as paramagnetism but but the paramagnetism of gd is quite strong. I heated up gd (99,99 % pure)  up to 60 degrees C and it was still attacted by a neodym magnet. Reaching the Curie temperature of Gd does not mean that there is no magetic attraction at all any more.

[nestor89]

Interesting Magnet Generator:

https://www.youtube.com/watch?v=VonUp5Wicwk

I think that the idea might work. However I am not sure whether the whell in the video is accelarted by the water flow (like a water mill).

[nestor89]

The Gadolinium rotor block would be drawn into the permanent magnet field at precisely 68º Fahrenheit by the magnetic attraction. This force would power the rotor. Initially, the block would heat up, and traveling at just the right speed, the preliminary rise in temperature might be sufficient enough to briefly push it just above the Currie point to turn the block non-magnetic

Paramagnetic <> non-magnetic

[profitis]

Nestor'Ferromagnetism is stronger as paramagnetism but but the paramagnetism of gd is quite strong.'

If you use a weaker magnet then its not a problem.it will drop the gadi

[profitis]

Tinselkoala'Be sure to set up a "control experiment" at the same time'

He can just use a nickel coin of similar size and weight.I got these things to become dead-still and I mean dead-still in my cupboard in my room using short-string cotton with nickel coins