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why am i learning phycis in a video game

It works on water so its not "perpetual"

Update for new water physics soon?

For those also trying to construct their own PPM based on this video: @3:45 (appx) he states that the total outflow is less than the relative water level divided by "zero point one five" but the image on screen says less than or equal to relative water level divided by 1.5. I believe that it must be 0.15. Here's why: I could not figure out why his PPM had the wheels on 2 high platforms, but it is so a relative water level of 2.1 (minimum required to operate) will allow for a total outflow of 14. Since it is a 2 wide channel, that allows for up to 28 cms or 56 mechanical fluid pumps. (I think there are 49 in his build.) I was too focused on the 2.2 cms limit off of what I call a "falling edge" but he defines as a drop of 1 block or more. The trident-shaped damn structures between the top, middle, and bottom section of WWs is to increase the number of falling edges to accommodate the designed rate of flow. While 2.2 cms is the limit, the higher capacity over design is expected to make it easier to get it to steady state flow. (Although, I count 12 falling edges in the design that I freeze-framed. With a designed rate of flow of 24.5, Tim Lin kept it close to 2.2 cms.) Another lesson learned, I was trying to combine fluid pumps with water sources, but the fluid pumps would not pump properly. This was because they stop if the water level is too high. I had to create a lock 1 block above the top set of WW, so that the water would continue flowing even if the reservoir got full (ie, relative water level of 3 at the top of the WW. Since it only had to be one block deep, I raised it up a block and put a dam (0.75 m not subject to the 2.2 cms limit, and then used a finned-structure to distribute the flow across many falling edges. edit: when I checked that timestamp, the info box of the example had a relative water level of 1.5 and outflow of 10, so it is definitely 0.15. ie, 10 <= 1.5 / 0.15

Very impressive. Could you do another video where you discuss what went into the design and how the specific water physics were considered?

My favorite part was the explanation of the math.

Well done!

To everyone asking for a part 2 - In case you didn't know, he has an older video in his channel which is also currently the only other video, where he shows a perpetual motion machine. That said, he might do a video which explains everything like he did here. Very nice effort, I imagined that this would work because of the lack of resistance to water flowing through a water wheel and the plain 700 hp cost for a mechanical water pump. The way you used water dumps to maintain water levels at the bottom reservoir was also interesting insurance against water loss from evaporation. If you get time, please do a part 2 with a similar explanation.

Where part 2?

So part 2?

i also figured this out as well, and it works because the pumps create free potential energy, basically teleporting the water up without additional cost for the height gain.

Lol you never made part 2

That is amazing you were able to pull that off.

I NEED infinite power lol

Great summation of the mechanics involved in water wheels, I look forward to the application of all of this!