Space Shuttle.

"Bob Noel" wrote in message
...

I know how the shuttle de-orbits.


Of course you do, I just explained it.



My follow-up question was directed at the OP.


It should have been clear to you that he had no idea.

In article ,
"Steven P. McNicoll" wrote:

I know how the shuttle de-orbits.


Of course you do, I just explained it.

oh my, you are so precious. LOL


My follow-up question was directed at the OP.

It should have been clear to you that he had no idea.

Well, I not surprised that you didn't understand the purpose
of the question.

Have a wonderful New Year.

--
Bob Noel
(goodness, please trim replies!!!)

"Bob Noel" wrote in message
...

Well, I not surprised that you didn't understand the purpose
of the question.


I certaimly understood what you wrote, if your intent was something else you
misspoke.



Have a wonderful New Year.


Likewise!

As long as were on the subject of getting into and out of orbit, anyone want
to discuss the space elevator concept?

--
Best Regards,
Mike

http://photoshow.comcast.net/mikenoel


"Robert M. Gary" wrote in message
...
On Dec 28, 4:05 am, "Oz Lander" wrote:
Just watched a show on the Columbis disaster, and a question came to me.
Why does the shuttle have to be travelling so fast to re-enter the
atmosphere?

Think of it this way. The shuttle isn't moving fast, its landing on a
fast moving object. Landing on the earth is like a carrier landing,
the earth is spinning around and the shuttle has to match to it.

-Robert

On Fri, 28 Dec 2007 15:52:55 -0700, "Mike Noel" wrote:

As long as were on the subject of getting into and out of orbit, anyone want
to discuss the space elevator concept?

Great once it's in place (except for the risk from terrorists) but kinda tough
to build....

Ron Wanttaja

"Mike Noel" wrote:
As long as were on the subject of getting into and out of orbit,
anyone want to discuss the space elevator concept?

Wont work - the banal music will keep people from using it.

Mike Noel wrote:
As long as were on the subject of getting into and out of orbit, anyone want
to discuss the space elevator concept?

It has been discussed to death on sci.physics, sci.space.policy,
sci.space.shuttle and for some strange reason soc.culture.zimbabwe,
though a lot of it is babbling drool by Brad Guth and associates.

--
Jim Pennino

Remove .spam.sux to reply.

On Fri, 28 Dec 2007 07:34:38 -0500, Bob Noel
wrote:

In article ,
"Oz Lander" wrote:

How do you propose to slow the shuttle down from orbital velocity?

That I guess answers my question then. I was not aware that such high
speeds were required to just stay in orbit. What would it take to slow
the shuttle down whilst in orbit, enough to allow it to re-enter at a
slower speed?

They can slow down, but the more they slow down the steeper the
re-entry and the more power it would take to slow them at that stage.
Currently they slow just enough to drop out of orbit. Orbital speed
doesn't let them break free of earth's gravitational field. They are
continually falling around the earth.


It would require a large amount of fuel, way more than we can currently
afford to put into orbit.
Or even have the technology to lift.

Yup. Just think of a take off in reverse. They'd need enough fuel to
do the opposite of the take off which means they'd have to put
everything they now use for a takeoff, into orbit. They'd have to use
many times the fuel they now use to launch that extra weight. Much of
the initial lifting is done with those large solid propellant boosters
so they'd need to launch not only every thing they do now, they'd need
to power to put the shuttle, an external fuel tank, and two boosters
into orbit.

It sorta makes those old sci-fi movies where they used retro-rockets
to land appear in a different light. We don't have that kind of
power...yet. :-))

Roger (K8RI)

John Smith wrote in
:

In article ,
"Mike Noel" wrote:

As long as were on the subject of getting into and out of orbit,
anyone want to discuss the space elevator concept?

What is going to be used as the counter-mass in space?
Is someone going to trap the proper sized rock in the asteroid belt
and haul it back to the desired Earth orbit to attach to the top of
the elevator tube?


We could use anthony. We'd have to check as to his exact mass, but I bet
it's in the ballpark.


Bertie

Ron Wanttaja wrote:


Until we develop antigravity, or highly-efficient engines that can
put out the thrust levels needed to hover, we're stuck with the
high-speed reentry process.

Ron Wanttaja

An excellent explanaition. Thankyou!;-)

--
Oz Lander.
Straight and Level Down Under Forum.
http://www.straightandleveldownunder.net