Mathematical Analysis of an Ideal ZED

[MarkE]

Minnie here is the quiz and the answers.

Here is a quick pop quiz:  Suppose Wayne wants to lift a 1kg payload weight 10cm.  Let's help Wayne find the most efficient means to do that.  Assume all the gear is frictionless, and structure mass is zero.

a. How about a block and tackle.  It will take just a smidge more than 0.98J to lift the weight 100cm.
b. How about a hydraulic ram?  How much will it take?
c. How about a buoyancy device?  How much will it take?
c.1. How about a ZED like buoyancy device?  How much energy will it take?

a. The winch does not store any internal energy in anything other than the weight.  E_IN = Payload GPE gained.

b. The ram requires a column of pressurized fluid.  The amount of fluid can be small if the pressure is high.  Some GPE is stored in that fluid column.  The total energy is: Payload GPE gained + hydraulic fluid column GPE gain.

c. An optimal buoyancy device would use Archmedes' Paradox such  that virtually no GPE is required to initially float the payload.  That can be arranged by placing the buoy in a container just slightly larger than the buoy.  The buoy volume is selected to just displace the payload weight in the surrounding fluid.  The buoy length is chosen to be equal or greater than the intended lift distance.  The container must be taller than the length of the buoy plus the intended lift distance.  For an arbitrarily tall buoy and container column, the total energy is:  Payload GPE gained * ~(1 + 5cm/(legnth_buoy)

d. A ZED:  ZED's are just serpentine versions of buoyancy devices.  If a ZED is made very very tall compared to the intended lift distance (much more so than a single column buoyancy device) then like the single column device, the additional GPE that must be stored in the machine may be made small compared payload GPE gained.  This assumes that the risers can be made of zero mass material, which of course is not true.

The bottom line is that the serpentine buoyancy approach is: The most complicated way to achieve the end, and does not offer any energy efficiency advantage over simpler means.

[MarkE]

A fool believes what he has been told without question, and we have been told what to look for and how it shows us what is being told.

Wayne Travis has never offered verifiable evidence that supports his stories. It is because none exists. He is a fraud.

Circular logic, a House of Cards,, and other such methods is what covers a very large portion of what we know.

This sounds a lot like you are descending again into an argument from ignorance, which is a logical fallacy.

Just because something CAN be one way,, does that mean that it MUST be that way?

That is an argument from ignorance.

Jumping to a conclusion because it does not agree with what is known is ignorance.

That is logically incorrect.  If something is "known" then the belief is based on evidence.  Otherwise, it is just a belief.

[minnie]

   Webby,
           where everything is known and well researched you're not going to find
   anomalous behaviour.
        When water freezes that's sort of anomalous because it expands. Perhaps
    we could have a "Freezeazed" and see how that works!
                      John.

[TinselKoala]

Heck, even in Southern Oklahoma it freezes in the winter. An Indoor Zed in its own heated shed will probably stay liquid, but you'll have to put lots of antifreeze in your Outdoor Zed to keep it from busting its pipes in when the cold wind blows across that old Oklahoma prairie.

[MileHigh]

In my imagination Wayne Travis and James Kwok are drowning in their sorrows in some dusty old bar in a dirty and lonely dead-end town.

Its quarter to three,
There's no one in the place cept you and me
So set em up joe
I got a little story I think you oughtta know

Were drinking my friend
To the end of a brief episode
So make it one for my baby
And one more for the road

I know the routine
Put another nickel in that there machine
Im feeling so bad
Wont you make the music easy and sad

I could tell you a lot
But you gotta to be true to your code
So make it one for my baby
And one more for the road

- Fade to Black -