Brilliant concept, but will it work?

[Low-Q]

Hi there!


I found this video on youtube. I just love the concept - and the guy is somewhat funny :-)
https://www.youtube.com/watch?v=wI7j6YYZ8-I


Can anyone see why it cannot work, given no leakage if the machine is filled with water?
There are seemingly no surfaces that can counterforce the area where the wheels are narrowing and shorten the buoyant tubes. Due to the straight uniform tubes, it cannot be sideways forces that prevent the wheels to decrease the buoyant part of the tubes.
The tubes have greater volume and surface area in touch with water at the farthest position than the closes position. So buoyancy would be greater on that side right?
Water pressure is the same on both sides.


This is almost as difficult to explain as how boiled spagetti is possible to suck in your mouth even if there is seemingly no directional forces pushing it in.


Vidar

[ramset]

Thanks for sharing this brain twisting variable... full of possibilities . 

of course it works.....Until ?

I guess it wouldn't matter if it was a smaller leaky test bed .Or would it ?

and yes ...Mercury ?[his mention ]

he does seem a fun guy

respectfully
Chet K

[Low-Q]

Thanks for sharing this brain twisting variable... full of possibilities . 

of course it works.....Until ?

I guess it wouldn't matter if it was a smaller leaky test bed .Or would it ?

respectfully
Chet K

This has bugged me all night. I guess the 3D printer have some work to do quite soon.
Just make a small 20cm diameter model with ballbearings. Even if there is leakage, I can let the tapwater keep filling the tank. This is just to prove or disprove the concept. Nothing more.
I'll start the production of parts today.


Vidar

[ramset]

yes
I lost some sleep too with this one

maybe he could take it to a fire dept and ask them to test run their water hoses  in the parking lot ,should fill up fast enuff to compensate for all the leaks.

those fire guys luv to play with their hoses ...and test the equipment.

[Low-Q]

I thought maybe some sealed "bellows" would do the same job. I assume, since the two wheels are fixed, there is no force that will compress them more at the bottom than the top.
The pressure on their bellow surface should cancel out in both directions. What I assume, is that there is no water pressure that will try to shrink the bellows. And therefor no counterforce anywhere.
However, there is greater volume where the bellows are stretched out, and less volume where they are compressed.


An open "airway" inside the wheels allows air to flow around from bellow to bellow.


Submerging this thing under water will probably cause more buoyancy on one side than the other.


What do you think?


Vidar