Perpetual motion machines cannot exist, there's friction, gravity, and all sorts of forces but once started a machine can run for a longtime, like planets circling the sun, a couple of times, I have attempted it and it works.

It was a very simple device. I surmised if the "weight of water in a vertical water tower was greater at the base, the water would rise up out of the tower and continually flow. The problem was a membrane that caused a separation between the lower pool of water and the riser tower. I used air. I designed to tower so there was a hump below the pool and in that pipe hump I had air. I used like 8" to 3" inch black platic drain pipe. The pressure in the hump was incredible and eventually the water absorbed all the air and then the flow stopped.

There are fixes for that.

Another fellow used hundreds of plastic tiny diameter plastic tubes in a bundle from his pool and capillary action occurred. Eventually the tubes fill with crud and the flow is blocked. But it ran for a long time. There was no need to pump air into his system and use the air a membrane to create separate space between water.

Then, of course there's my device that continually creates dc electricity with no moving parts that is nano tech. It's not going to last forever due to corrosion, but it is made of recyclable materials. So, it can be made again and again, forever.

Then there are things that can be made in space that mechanically generate electricity forever, perform other functions.

Funny, it's like the folks who cause the drought to power a hundred megawatts of wind power and the wind only comes from the north or south, the directions they demand.

They must make a lot. All I ask is similar remuneration and until then...