The secret to perpetual motion.

[Orion]

bhaskara wheel but add a little buoyancy force or FB if you're into that sort of thing, 

(The curve is essential in directing said force.)
 

Preemptive remarks. 
Evaporation doesn't work in phylacteries with fauna.
Bearings don't need to be frictionless, just extremely durable. 
The sloshing of liquid is an energy loss mechanism yes, but it will never surpass the original peak of the inserted momentum. 

                                                                                                                  - Someone named Chree.

Edited March 29, 2022 by Orion
Water into liquid.