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The expedition you want to really look at in Nansen's Fram expedition, 1893-96. The Doctor on that expedition had very little to do as far as healthcare. You have to remember that these men are going to be very healthy to start with.
I just thought of this, it's only a short term baseline but has anyong compared the physiological effects between the moon missions and orbital?
I've said it before, I think a study of Nansen's Fram expedition would prove useful to planning out a Mars expedition. 9 men, limited outside activities, very limited communications, 3 years.
Nansen's Fram expedition, 9 men for almost 3 years, no external contact.
Hi , i must build a blimp (car balloon) and would like to know how many payload (grams) 1mt³ of balloon mix( He²+H² ) can to lift?
Unfortunately at sea level, 100% purity, and 100% inflation H2 lifts about 75#'s per 1000 cubic feet, and He about 65#s. as a ballpark it work out to about 1 KG per cubic meter. Pre WW2 the german zep crews allowed 1% inflation per 100 Meter's of altitude. The expansion is the reason that WW1 "height climbers", which reached 26000 ft had nearly half of their sea level lift taken by ballast.
Actually, Von Braun's 'The Mars Project'(1953) and 'The exploration of Mars'(1956) were both 400 day stays.
Don't miss the non-space developements that could prove usefull. Phil Nuytten (www.nuytco.com) is developing a 'swimmable' ADS, it's heavier and stronger than any Mars suit would have to be.
Also the Army 'Land Warrior' technologies could be include with good results.
(HUD, backpack based computer, comm, and GPS)
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