Iran Hopes to Send a Man to Space Within 10 Years - Page 2

krozar · 22-08-2008, 03:24 AM

What I am curious about...

Are they sending a man to what many refer to as "space?"

Or are they going to put a man into orbit?

Technologically and functionally the two are vastly different.

NASA does not send men into space. That is easy, it can be done with relatively small hybrid rockets on a composite airplane as demonstrated by Burt Rutan. No, they send men into orbit.

Patrck_744 · 22-08-2008, 03:34 PM

[ Sarcasm ] Are planning they on blowing up the International Space Station? [ Sarcasm]

Anyway, this shit is just a cover-up for their ICBM projects.

Keerua · 22-08-2008, 04:27 PM

Quote:

Originally Posted by krozar

What I am curious about...

Are they sending a man to what many refer to as "space?"

Or are they going to put a man into orbit?

Technologically and functionally the two are vastly different.

NASA does not send men into space. That is easy, it can be done with relatively small hybrid rockets on a composite airplane as demonstrated by Burt Rutan. No, they send men into orbit.

I am not sure I understand, do you mean in orbit as in the man staying in orbit for lengthy period of time?

krozar · 22-08-2008, 10:33 PM

Not really. Going into orbit can best be described as constantly falling but just missing the ground. Because your motion around the object (in this case the Earth) is faster than the gravity can pull you toward it. Tie an object to the end of a string and fling it around, that's similar to orbit. The string is gravity, it wants to pull you inward but your motion is too great, so there becomes an equilibrium.

To reach orbit requires a lot of power (60 times more in fact to reach the easiest attainable orbit). If you're too close to the Earth, then your speed needed to reach orbit increases dramatically. So you need to go high and go fast.

To reach "space," one only has to fly to an altitude of 100km. For example the ISS, which is at a fairly low orbit is around 320 - 450km and Earth's gravity on it is still very significant. In fact it's at a constant state of falling toward Earth and periodically they will boost it back up. Most satellites are far far higher than that.

The basic circular orbit formula is: v = sqrt(μ/r)

μ is the standard gravitational parameter and is μ = GM (product of the gravitational constant and mass)

r = radius

22-08-2008, 03:24 AM	#21
krozar Gaaaaaaaaaaaaaaaooooooooo Join Date: Sep 2004 Location: Death City Nevada Posts: 16,425 My Mood: Rep Power: 168 Total Awards: 4	Re: Iran Hopes to Send a Man to Space Within 10 Years What I am curious about... Are they sending a man to what many refer to as "space?" Or are they going to put a man into orbit? Technologically and functionally the two are vastly different. NASA does not send men into space. That is easy, it can be done with relatively small hybrid rockets on a composite airplane as demonstrated by Burt Rutan. No, they send men into orbit. __________________ "I don't know what to do with girls...." - The Futa Crona

22-08-2008, 03:34 PM	#22
Patrck_744 ANBU Join Date: Feb 2007 Location: Florida, USA Posts: 1,215 My Mood: Rep Power: 10	Re: Iran Hopes to Send a Man to Space Within 10 Years [ Sarcasm ] Are planning they on blowing up the International Space Station? [ Sarcasm] Anyway, this shit is just a cover-up for their ICBM projects.

22-08-2008, 10:33 PM	#24
krozar Gaaaaaaaaaaaaaaaooooooooo Join Date: Sep 2004 Location: Death City Nevada Posts: 16,425 My Mood: Rep Power: 168 Total Awards: 4	Re: Iran Hopes to Send a Man to Space Within 10 Years Not really. Going into orbit can best be described as constantly falling but just missing the ground. Because your motion around the object (in this case the Earth) is faster than the gravity can pull you toward it. Tie an object to the end of a string and fling it around, that's similar to orbit. The string is gravity, it wants to pull you inward but your motion is too great, so there becomes an equilibrium. To reach orbit requires a lot of power (60 times more in fact to reach the easiest attainable orbit). If you're too close to the Earth, then your speed needed to reach orbit increases dramatically. So you need to go high and go fast. To reach "space," one only has to fly to an altitude of 100km. For example the ISS, which is at a fairly low orbit is around 320 - 450km and Earth's gravity on it is still very significant. In fact it's at a constant state of falling toward Earth and periodically they will boost it back up. Most satellites are far far higher than that. The basic circular orbit formula is: v = sqrt(μ/r) μ is the standard gravitational parameter and is μ = GM (product of the gravitational constant and mass) r = radius __________________ "I don't know what to do with girls...." - The Futa Crona