LOL!  Oh how I love this part of any good thread!

Thanks a million (peso?), TK!

M.

LarryC says:

QuoteThe reason they all have the same head is because in 2 U and 3 U, the last water column is pressing up on the next air column and the next air column is pressing down on the next water column, etc. etc. They appear to the piston as a single column of water pushing up.

Yes, I agree with that, at least until I can actually measure the pressures, but logically you are correct.

And how far did the piston push that single column of water up? The same distance the piston travelled down, right? Which, in the system on the right, is only 1/3 the distance of the system on the left. Right?

Work in = work out, minus losses, for each separate system.

Work for system on LEFT >> work for system on RIGHT.

RIGHT? Or not?

Quote from: TinselKoala on August 14, 2012, 09:17:34 PM
Work for system on LEFT >> work for system on RIGHT.

Sorry, but I can't help myself here...

Larry is only describing the work IN with this demonstration.  And yes you are correct that Work for system on LEFT >> work for system on RIGHT.

M.

PS.  Sorry again if I stepped in your way Larry.  This is really a great discussion between you and TK and I'll try to butt out.

Quote from: hartiberlin on August 14, 2012, 06:47:38 PM
I have put users MileHigh, Seamus and Microcontroller on Moderation as they have trolling this
thread too much  !

Regards, Stefan.

The only way I would agree to do so is if the members hammer against an idea that they themselves have not built themselves, like TK and the Tar Baibies, or Poynts diligence one the sims and come to accurate conclusions. But if they are just going to preach text book theories and laws against something as complicated as Waynes device, without having full knowledge of the device, nor ANY experience with it, then they should keep to themselves until they do have this knowledge and experience, in order to even make a case against the idea.

Otherwise it is just hounding, bickering, useless posts. Trolls.

TK, I have a feeling will delve deep into this. I see he is still on the 'HUH?' side, but as others here have spoken as to whom they want to see more posts from and who not, this should be a good indicator. And the Not's are agreeably  not helping to figure things out, this is for certain. The Not's only post time/page wasting material. And animosity along with it. You can see it in the last few pages up to this one.

Wayne doesnt have to show anything. But he is and he has a nice, high, level of patience in doing so. Everyone deserves a fair chance to do their thing. But if their thing is to disrupt a thread with bias, and little knowledge of the device specifically in order to prove their case 'against' it, then most will agree that these posts are the least wanted.


With TK here, doing some serious questioning, while seriously trying to understand what is happening, there is no need for extra grumble and mumble about things that are well known or just insulting comments. They have know idea how this thing works exactly, and their posts show it. ;]

My local Plastics store (Plexi, etc) has lots of sizes of thin wall clear tubing(1/8 in). ;]

MaGs

Quote from: mondrasek on August 14, 2012, 09:22:53 PM

Sorry, but I can't help myself here...

Larry is only describing the work IN with this demonstration.  And yes you are correct that Work for system on LEFT >> work for system on RIGHT.

M.

PS.  Sorry again if I stepped in your way Larry.  This is really a great discussion between you and TK and I'll try to butt out.

Well, OK, then.... I guess we all agree that the Work, or equivalently the Energy... of the three systems LarryC presented are not the same and there isn't any magic happening. The fact that the "head pressures" are logically the same in all three cases is the Red Herring of the week. Pressure is not energy, it is not work, it is NOT a conserved quantity.

So I am afraid I don't get the point. Reduced work IN for the same pressure -- and reduced work OUT -- , with no other considerations deemed important?

https://www.youtube.com/watch?v=pTSMyKdKDR0