Fast forward 1000 years. Your flying car is running on essentially free energy thanks to its "gravity engine" (tm) which draws upon Physics so extreme, that to become aware them, you would have had to setup something as massive as a white dwarf orbiting a black hole, and study it for 30 years, before being able to reproduce this phenomenon in laboratory conditions, let alone miniaturize it.
And ice can also quickly sublimate in a vacuum depending on the temperature, and during the day the Moon temperature rises above the boiling, let alone melting point of water. The Moon's gravity is too low to retain water vapor, so as soon as you get liquid water it disappears within minutes. Meters of ice would sublimate in a day. If the Moon had a 3 km thick layer of ice, like we do, it would sublimate in 10 years.
You don't need heat or impacts, just some basic knowledge of thermodynamics.These well-known facts have been around for over 100 years.
You would have to have ice in permanent shadow at the bottom of a polar crater to get water. But, on a side note, we already sent impactors to the most likely place where water could theoretically exist and did not find any.
Why is this news? I can remember this being done all the way back to the 80s...
I don't know much about Physics but I did some quick math on the NASA results and we are talking about 5 micronewtons per watt, not 0.1 newtons per watt.
If this affects your conclusion about perpetual motion, or not, is something I am not knowledgeable enough to judge. But I would love to learn more from you!
If you think the system is working, ask someone who's waiting for a prompt.