Re: Shows what i know..me=dumb in http://www.dslreports.com/forum/r19510076 en Mon, 14 Dec 2009 21:30:19 EDT Mon, 14 Dec 2009 21:30:19 EDT Re: Shows what i know..me=dumb http://www.dslreports.com/forum/remark,19523305 N10Cities :
said by drjim See Profile :

Well...."kinda-sorta". Hughes (now Boeing) invented the "XIPS" Xenon-Ion-Propulsion-System which uses electric power to produce a plasma from Xenon liquid. It's very efficient, but still relies on having a tank of *something* to use. Eventually, you run out of "stuff" to use, which renders an otherwise "good" satellite defunct.
---]]> http://www.dslreports.com/forum/remark,19523305 Wed, 28 Nov 2007 07:45:50 EDT Re: Shows what i know..me=dumb http://www.dslreports.com/forum/remark,19514264 drjim : Well...."kinda-sorta". Hughes (now Boeing) invented the "XIPS" Xenon-Ion-Propulsion-System which uses electric power to produce a plasma from Xenon liquid. It's very efficient, but still relies on having a tank of *something* to use. Eventually, you run out of "stuff" to use, which renders an otherwise "good" satellite defunct.
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One man's Magic is another man's Engineering.]]> http://www.dslreports.com/forum/remark,19514264 Mon, 26 Nov 2007 20:07:47 EDT Re: Shows what i know..me=dumb http://www.dslreports.com/forum/remark,19513999 PolarBear : Oh sure, you just HAVE to bring up stupid laws of physics... ugh! :D]]> http://www.dslreports.com/forum/remark,19513999 Mon, 26 Nov 2007 19:30:35 EDT Re: Shows what i know..me=dumb http://www.dslreports.com/forum/remark,19513980 Healbot :
said by PolarBear See Profile :

Since they're solar powered, couldn't they be maneuvered via electric means?
I don't think an electric motor can spin air that doesn't exist.]]> http://www.dslreports.com/forum/remark,19513980 Mon, 26 Nov 2007 19:27:38 EDT Re: Shows what i know..me=dumb http://www.dslreports.com/forum/remark,19513306 PolarBear : Since they're solar powered, couldn't they be maneuvered via electric means? ]]> http://www.dslreports.com/forum/remark,19513306 Mon, 26 Nov 2007 17:50:05 EDT Re: Shows what i know..me=dumb http://www.dslreports.com/forum/remark,19511382 drjim : They don't "fall from orbit". When the onboard consumables get low, they let it drift North-South for a while, and then use the remaining fuel to boost it up and out to a graveyard orbit. About half the lift-off weight is fuel, and about 90% of that is used for North-South station-keeping. Once they're in the proper orbit, they drift very little East-West.
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One man's Magic is another man's Engineering.]]> http://www.dslreports.com/forum/remark,19511382 Mon, 26 Nov 2007 13:10:46 EDT Re: Shows what i know..me=dumb http://www.dslreports.com/forum/remark,19510430 wolfox : Satellites carry a finite amount of compressed gasses on-board that are used through it's lifetime to correct it's place in space. Especially on geo-synchronous birds. When they run out of spritz, they fall from orbit and die.
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The RIAA killed my legal webcast. Sadly it will never be mourned...]]> http://www.dslreports.com/forum/remark,19510430 Mon, 26 Nov 2007 10:34:14 EDT Re: Shows what i know..me=dumb http://www.dslreports.com/forum/remark,19510076 bogey780 : I don't know if this is the reason but this bird uses 12kW of juice. I imagine the hardiest of powerplants still needs some maintenance.]]> http://www.dslreports.com/forum/remark,19510076 Mon, 26 Nov 2007 09:29:43 EDT Re: Shows what i know..me=dumb http://www.dslreports.com/forum/remark,19510061 voiplover : Space dust hitting the satellite at thousands of miles per hour puts holes in all kind of things. :o
The first satellites suffered solder hairs that grow rapidly in a vacuum environment.... :huh:]]> http://www.dslreports.com/forum/remark,19510061 Mon, 26 Nov 2007 09:26:17 EDT Shows what i know..me=dumb http://www.dslreports.com/forum/remark,19509976 ztmike : I thought satellites that were released in space never die unless something dies that couldn't be possibly fixed?

Unless something that dies that keeps it in orbit..
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"I am the worst president in U.S history, I'm either stupid or dumb most of the time, but people still believe me." George W. Bush]]> http://www.dslreports.com/forum/remark,19509976 Mon, 26 Nov 2007 09:05:08 EDT