Subject:
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Re: Wings [was: Re: Building big]
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Newsgroups:
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lugnet.space, lugnet.loc.au
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Date:
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Thu, 21 Jun 2001 17:47:17 GMT
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Viewed:
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149 times
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In lugnet.space, William R. Ward writes:
> "Jesse Alan Long" <joyous4god2@yahoo.com> writes:
> > Dave, you are correct in observing a small mistake concerning the rockets.
> > There were parachutes that helped the rockets land in the ocean but even so,
> > in a unique way, the parachute acted not only with but against the retro
> > rockets because air is required to help an object to land safely on the
> > ground or, in this instance, the ocean. The parachute helped the retro
> > rockets not burn as much fuel and withstand as much gravitational friction
> > as they would if there was not a parachute on the rocket.
>
> There are no retro rockets used in an Apollo re-entry to Earth. Only
> the heat of friction and the parachutes slow the ship down from
> orbital speeds to the slow speed required for a safe splashdown.
>
> > The comment about
> > the total lack of gravity in a laboratory is that a special type of room has
> > to be built in order to not contain any gravity and, at least from the
> > perspective of this era, any facility that contains such a quality would
> > probably be used for some type of space research lab or a test area by a
> > space organization. The answer to your question, which was a response to a
> > question, is that if these objects are able to move through space, then they
> > must be moved by some sort of either controlled or internal gravity inside
> > their mass.
>
> If there was such a laboratory it would be quite a boon to NASA.
> Unfortunately the current theories of physics state that it would be
> impossible to create such a room.
>
> To simulate lack of gravity, there are two techniques used. Both of
> these are used by NASA as part of their astronaut training program:
> 1. Put astronauts in a big swimming pool, wearing their spacesuits.
> The buoyancy in the water acts against gravity so that the effect is
> somewhat similar to zero-G.
> 2. Fly in the "vomit comet" - an airplane that goes very high up
> into the atmosphere, and then dives straight down, so that the
> occupants experience free-fall. This can only continue for about 30
> seconds, because otherwise the plane would crash. They then climb
> back up and repeat the cycle several times.
>
> --Bill.
I think I was possibly referring to the "vomit comet" when I was talking
about the laboratory, Bill. I do appreciate the fact that you made me
consider an attempt on weightlessness I never thought of in my mind when you
mentioned the swimming pool. I always thought that the action of friction
would cause an object to conduct more heat and energy as it would enter the
atmosphere and I am only twenty one years old so I do not know very much
about the Apollo space rockets so thank you for correcting that mistake I
made in my reply, Bill. I have wrote on a different reply to a different
person why I built the wings on my space craft.
Jesse Long
P.S. I appreciate the wonderful system known as the public school system
for filling my mind with such wonderful knowledge, if I have any knowledge
in my mind that these people have not tried to destroy in my life.
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Message is in Reply To:
 | | Re: Wings [was: Re: Building big]
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| (...) There are no retro rockets used in an Apollo re-entry to Earth. Only the heat of friction and the parachutes slow the ship down from orbital speeds to the slow speed required for a safe splashdown. (...) If there was such a laboratory it would (...) (25 years ago, 19-Jun-01, to lugnet.space, lugnet.loc.au)
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