 | | Re: Hypothetical design question —Leonard Hoffman
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| | | (...) I think the biggest problem for a ship accelerating towards light speed is not particles, but energy consuption. remember, the faster you go, the more energy you need to propell yourself, and this increases exponentially. essentially, (...) (21 years ago, 23-Jun-03, to lugnet.space, FTX)
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| | | | | Re: Hypothetical design question —Sylvia Tresto
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| | | | | (...) True, of course. However, I was wondering about the most efficient design to make that large ammount of energy used effeciently! (...) In mine the situation is similar.. (...) Thanx! Love, Sylvi (21 years ago, 23-Jun-03, to lugnet.space, FTX)
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| | | | | Re: Hypothetical design question —Anthony Sava
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| | | | In lugnet.space, Leonard Hoffman wrote: -snip- (...) -snip- (...) Now I'm going to start this off with the fact I'm no physicist. I'm not an expert. And everything I'm about to say is relayed from endless conversations I've had with my father about (...) (21 years ago, 25-Jun-03, to lugnet.space, FTX)
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| | | | | | Re: Hypothetical design question —Leonard Hoffman
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| | | | (...) Ask your dad about that again. My comment was based on readings from Stephen Hawking's "Brief History of Time" and "Universe in a Nutshell", as well as various online physics FAQ. Granted, in space you don't have to worry about air friction or (...) (21 years ago, 25-Jun-03, to lugnet.space, FTX)
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| | | | | | Re: Hypothetical design question —David Laswell
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| | | | (...) I hadn't really thought about this problem before, but I can see how it would be a problem. If your propellent has an exit velocity of 2mph, it shouldn't ever be able to make you go faster than 2mph. Once you've hit that point, the propellent (...) (21 years ago, 25-Jun-03, to lugnet.space, FTX)
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| | | | | | Re: Hypothetical design question —George Haberberger
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| | | | | (...) No, if you use simple conservation of momentum, at subrelatavistic speeds, you can still get a modest boost with a propellant speed of 2 mph. Your speed increase is propellant weight x 2 mph / remaining vehicle weight. since total momentem has (...) (21 years ago, 26-Jun-03, to lugnet.space, FTX)
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| | | | | | | Re: Hypothetical design question —James Brown
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| | | | | | | (...) Yup, but also note that a propellant exhaust speed of 2 mph is the rough equivalant of having the crew throw things out the back hatch. :) James (21 years ago, 26-Jun-03, to lugnet.space, FTX)
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| | | | | | | Re: Hypothetical design question —Larry Pieniazek
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| | | | | | | (...) Correct. (...) Yes, *something* does. It's not light though, since if it was light, they would spin in the black direction (with the black side leading the rotation).... (the momentum imparted to something perfectly reflecting is twice that of (...) (21 years ago, 26-Jun-03, to lugnet.space, FTX)
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| | | | | | | Re: Hypothetical design question —Mike Petrucelli
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| | | | | | (...) Actually the ship in SW2:AOTC could not have used light for propulsion. As the ship must have used hyperspace speeds to reach Palpatine so quickly we must conclude that whatever was used was far beyond any real science explanation. Just to put (...) (21 years ago, 27-Jun-03, to lugnet.space, FTX)
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| | | | | | Re: Hypothetical design question —Larry Pieniazek
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| | | | (...) I think you may need to look into relativistic reference frames... the exit velocity is w.r.t. the vehicle, not where it is traveling or what its current velocity is... the upper limit on vehicle velocity achievable with a fuel of a given (...) (21 years ago, 26-Jun-03, to lugnet.space)
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