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In lugnet.space, George Haberberger writes:
> In lugnet.space, Jesse Alan Long writes:
>
> much clipped
>
> > I was completely unaware that the space craft would immediately crash into
> > the Earth in outer space if it completely stopped in outer space. The space
> > program would probably never receive one red cent if that happened to a
> > space craft.
>
> Orbit is a balance between a spacecraft's velocity and the downward pull of
> gravity. The vehicle's velocity pulls it outward, like centrifugal force in
> a car turning a corner, and gravity pulls it in.
>
> >
> > I always thought that heat was able to boil liquids into gas but why does
> > heat not present a role into outer space? Why would pressure matter in
> > outer space? I always thought that you could make a plasma powered space
> > craft in a similar manner as you would build a welding torch so please
> > explain to me why the plasma engine would present a terrible idea for my
> > space craft? I mean, I know that plasma, in a uncontrolled state, can
> > present a great danger but what about a controlled plasma environment, if
> > any such environment is possible on a space craft?
>
> Boiling a liguid is causing a change from liguid to solid, and this depends
> on the air pressure the liquid is in. A pressure cooker can cook at
> temperature higher than boiling, in the mountains boiling temperatures are
> lower (check a brownie mix).
>
> Think of it this way. Boiling a liquid makes the liquid molecules jump away
> from the liquid. If there is air molecules in the way, they need more energy
> to jump away.
>
> >
> > The final question I have to ask is could it be possible, either in a
> > science fiction realm or a realistic realm for a Harrier type space craft to
> > actually fly into outer space? I thank you for clearing the confusion in my
> > mind, Jason.
> > Jesse Long
>
> Well, if the Harrier type aircraft has a jet engine, no, a jet engine needs
> air (or oxygen in the air) to work. The vectoring principle of HArrier would
> work.
>
> George
Thank you for the demonstration about the vehicle and the turning into a
curve, George. I finally grasp that concept in my mind. However, liquids,
if you boil them, changes materials from liquids to gases, just to let you
know, George. :.)
Jesse Long
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Message is in Reply To:
 | | Re: Couldn't resist
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| In lugnet.space, Jesse Alan Long writes: much clipped (...) Orbit is a balance between a spacecraft's velocity and the downward pull of gravity. The vehicle's velocity pulls it outward, like centrifugal force in a car turning a corner, and gravity (...) (23 years ago, 28-Jun-01, to lugnet.space, lugnet.off-topic.geek)
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