Thanks all, glad to see more understanding and passing examples. Each example may be hard to understand for some and easy for others. So each example has values and will add to the total understanding. Which is critically required for the mass acceptance of this system.

Regards, Larry

Maybe a better model would be described by two relatively incompressible fluids (like mercury and water or oil), so you can ignore compressibility of air in the calculations.

@webby1: Exactly. Without the pod it is a plain old telescopic pneumatic lift. And pneumatic lifts are not OU. The more air you pump into the pneumatic lift, the more upward force you get. With this out of the way, you can just concentrate on the pod that is lifted by buoyancy, which is also not overunity. So, where do you get the energy to pump air/water into the ZED? What you can do is use potential energy (for example from a pendulum) to move air or water between ZEDs, but that potential energy will deplete in a few hours (depending on energy losses and the amount of stored potential energy).

@LarryC: I haven't heard it called water head, just water column (that actually explains some things). Fact that water pressure is the same at depth is well known. Now, in my drawing, the pressure can be 3.6 psi, it can also be 14.4 psi and it can be any pressure you want - if you have a compressed air tank with pressure higher than whatever the water pressure is at the input depth, you will increse the internal pressure and, at the same time, compress the air. Or, you can simply make the water column taller, which will increase the pressure on the air - compressing it to whatever pressure you want. Also, you can open the water column to atmospheric pressure and have an instant "boost" in pressure (of over 100 kPA or 14.7 psi) at the top. In each case, the lift will be the same and proportional to the energy input.

@KanShi,
"Fact that water pressure is the same at depth is well known."
Like so many other things these days, the "facts" are getting really strange.
Ask anyone who's ever had the bends if water pressure is the same at depth.

@Cisco: DCS is caused by breathing in high pressure air (due to depth of water) and quickly rising to the surface (lower depth of water => lower pressure) which causes bubbles. What is your point? Do you not agree that water pressure at eg. 100m depth below surface is the same, regardless of the size of the body of water? Or do you disagree with my description of DCS?

Quote from: KanShi on June 20, 2012, 02:38:54 AM

@LarryC: I haven't heard it called water head, just water column (that actually explains some things). Fact that water pressure is the same at depth is well known. Now, in my drawing, the pressure can be 3.6 psi, it can also be 14.4 psi and it can be any pressure you want - if you have a compressed air tank with pressure higher than whatever the water pressure is at the input depth, you will increse the internal pressure and, at the same time, compress the air. Or, you can simply make the water column taller, which will increase the pressure on the air - compressing it to whatever pressure you want. Also, you can open the water column to atmospheric pressure and have an instant "boost" in pressure (of over 100 kPA or 14.7 psi) at the top. In each case, the lift will be the same and proportional to the energy input.

LOL, what a load. I'll not waste time pointing out the obvious.

I do have one question. How many people do you know that actually fall for your 'make a error, don't admit it, change the story' technique?

I will be glad when you understand, you may be able to help.

Regards, Larry