Bruce H - 26/10/2005 3:42 PMThe cost is obviously obscene, Its purpose seems rather lost on me.
:::CRAZY-HAT ON:::
Tap-Sa - 30/10/2005 11:10 AMQuote:::CRAZY-HAT ON::: Mind if I borrow that a bit...Inline LV could very well shed most of it's insulation at T-0. Instead of trying to make the foam rigid make it loose, with precut cracks to make sure it peels off in small pieces in an orderly fashion. IIRC original Atlas didn't use any insulation for LOX even while pad. A lot of ice formed to the sides but it fell of quick during first seconds of the launch.
Avron - 30/10/2005 7:12 PMQuoteTap-Sa - 30/10/2005 11:10 AMQuote:::CRAZY-HAT ON::: Mind if I borrow that a bit...Inline LV could very well shed most of it's insulation at T-0. Instead of trying to make the foam rigid make it loose, with precut cracks to make sure it peels off in small pieces in an orderly fashion. IIRC original Atlas didn't use any insulation for LOX even while pad. A lot of ice formed to the sides but it fell of quick during first seconds of the launch.Not so nuts.. I was thinking the same thing for the shuttles, basically get rid of all the foam on launch, basically just dump the lot on the pad... would be a big stick mess.. Back on topic.. I just don't get the need for a rotating station..
RedSky - 6/3/2006 4:41 PMWithin the past week I read some old archived articles somewhere concerning rotating space stations (I'll try to re-find the link).If I recall... there are some serious limitations on the rotation rates... not for mechanical reasons (thought I'm sure that's true too)... but for physiological reasons. Yes, you might be able to produce some amount of "artificial gravity" by rotation. However, unlike a straight-line acceleration (which would be indistinguishable from true gravity), most people can't cope with the rotation generated kind. That is because if you were walking on the "floor" of a rotating station (i.e., the inside of the outer rim wall), the downward force would be fine... but if you turned your head, coriolis affects on your inner ear would cause disturbing consequences (i.e., disorientation, sickness, etc). One would think that you could get acclimated to this, but from studies done, that didn't appear that you would. I read this was first noted in centerfuge training... where if you kept your head forward, things were OK (well, except for the g-forces you'd feel there). But if you turned your head during the training, you'd take many hours to recover after the test.Has anyone heard or read about this? It would mean a "rotating wheel" type station would have to have a very large radius (i.e., 2001 style) to get the high enough centrifugal force (artificial gravity), with the slowest rotation possible.
RedSky - 6/3/2006 6:20 PM So for a 1g station rotating at 1 RPM, it would need a station to be almost 2km in diameter!! Of course, that's the "ideal" situation.... 1 g and 1RPM.RedSky
publiusr - 8/3/2006 2:12 PMOne of the reasons I support HLLV. IIRC a Saturn V could have deployed a folding segmented ring.ET stations seen at:http://www.spaceislandgroup.com