Hydro Differential pressure exchange over unity system.

[mondrasek]

Ha!  Mommy's digital camera takes pretty good video too!  And she is not a bad camera operator either.  Uploading now.

RS, I am not sure if I offended you or not.  I did not understand your reply to me and only became concerned when @neptune chimed in.  Sorry if anything I posted was found to be offensive.  It was not intended as such.  I try to write with no tone implied, but if read with tone in mind anything posted can seem insulting.

M.

PS. 107 minutes to go:  http://youtu.be/YwXsoqm75WY

[TinselKoala]

TK, How do you explain the paradox where you can float a battleship with a bucket of water?

I am currently working with real build data to verify these various forces in the sim.  I am quite willing to admit any mistake and correct my sim to match real world data.  I don't currently see how I can ignore differential pressures at different water depths.  This is the key element of the Archimedes Paradox which is a key principle in the ZED.  It seems to me that your experiment proves rather than disproves my methods.  The differential pressure from the top to the bottom of your float does not change no matter what depth it is sunk after it is completely underwater, so no forces will change. 

http://en.wikipedia.org/wiki/Archimedes_paradox

Are we even talking about the same thing?
Perhaps it is a semantics issue.

It would only be a paradox if the bucket of water weighed the same with the battle ship removed _and no water added_. 

That is: you put your battle ship in the weightless bucket full to the brim of water, overflowing the excess,  and weigh it. Your result is W_total.  Now draw a line on the battleship's hull right at the waterline. Remove the battleship and weigh the bucket.... now you see only the weight of the water remaining, W_{total-battleship} = W_water. Right? Now convert this to a volume and subtract that from the total volume of the bucket: that is, the result is the amount of water that the battleship displaced. Right?
Now take your battleship and calculate the volume of the hull below the waterline you marked. Guess what..... the volume of the hull in cubic centimeters is the same as the weight of the displaced "virtual" water in grams, corrected for the exact density of your water.
No paradox at all.

The second part of your statement seems to be at odds with what you said the first time, which is this:

An observation from the sim:  There is a lift force coming from the bottom area of each Riser wall ring.  The thicker the wall, and the deeper the water level, the more lift force is generated.  This helps counterbalance some of the Riser/Pod weight.  However, as the Riser lifts up, this force diminishes (because the water depth PSI is less at less depth). 

That is the part I object to, because that is NOT how buoyancy works and there is no contribution from the water depth psi to the lifting. The head of water pressure raises the air pressure which pushes up against the riser; the depth of the parts extending into the water are not affected by the water "psi due to depth" which acts in all directions equally and so cannot produce movement, but rather by the upward force due to the displaced water being heavier than the volume that is displacing it. This upward force is independent of the "depth psi" but of course decreases as the submerged volume of the riser decreases as it lifts.

[TinselKoala]

Ha!  Mommy's digital camera takes pretty good video too!  And she is not a bad camera operator either.  Uploading now.

RS, I am not sure if I offended you or not.  I did not understand your reply to me and only became concerned when @neptune chimed in.  Sorry if anything I posted was found to be offensive.  It was not intended as such.  I try to write with no tone implied, but if read with tone in mind anything posted can seem insulting.

M.

PS. 107 minutes to go:  http://youtu.be/YwXsoqm75WY

I use a program called WinFF to convert the huge files from my camera (about 100 MB/minute of video time) to something a bit more uploadable. Typically I get about 1/5 to 1/6 the filesize when I'm done, by converting from the camera's native format to a MS-compatible .avi format before uploading to YT. Saves a lot of time, but there is some loss of quality.
http://winff.org/html_new/

[mondrasek]

I use a program called WinFF to convert the huge files from my camera (about 100 MB/minute of video time) to something a bit more uploadable. Typically I get about 1/5 to 1/6 the filesize when I'm done, by converting from the camera's native format to a MS-compatible .avi format before uploading to YT. Saves a lot of time, but there is some loss of quality.
http://winff.org/html_new/

NOW you tell me!

Thanks for the info.  I'll have to check that out if I have to do this again.

What format does your video camera record in native?  I think mine is like AC3 or some such.  NOT PC friendly at ALL!

YouTube says only 13 minutes to go!  I wonder if that is realistic or just computereez for STFU and have a sandwich...

M.

[mondrasek]

The video is up on YouTube now.  I apologize after watching it for the several times I "misspeak" and do not hit the correct lift values during the rushed commentary/experiment.  But I believe this video still shows that I was not making up the data I posted earlier.

Let me know if there are specific experiments or measurements that you would like to see from this setup.  I can't promise anything, but will do what I can (because I can).

M.
http://youtu.be/YwXsoqm75WY