Cool. Literally I suppose. Cryo is short for cryogenic I assume? The lettering on the tank says it is for liquid Argon but I am trying to think what that much Argon would be used for in one place.
Do you have a bit more info on the prototype? Nice model
Wow! That's a REALLY impressive scratchbuild project there -- beautiful job!
Argon is also used in the production of insulated windows (heavy inert gas between glass panels) ... and as a filler gas in fluorescent and incandescent light bulbs ...