Image not available

1200x800

Download (1).jpg

๐Ÿงต Untitled Thread

Anonymous No. 16095802

Theoretically why can't a balloon or Zeppelin travel to space?
If gravity decreases with distance to Earth what would stop a Zeppelin (say of course with as much NASA finetuning as rockets) with an additional engine to reach the moon?

To make it more clear:
1. Why can't a lighter than air vehicle reach space?
2. Why can't a lighter than air vehicle then use a traditional engine to move through space?

Anonymous No. 16095824

Im gonna guess pressure difference would cause the gas bags in the zeppelin to expand since there's less air as you go up. There would be a point where the zeppelin would just explode since the materials holding the gas isn't strong enough to handle the pressure. The air is technically a sea so even if you could makea lighter-than-air vehicle, it would just stop ascending and just float on the surface of the gases like a ship on water.

You're gonna have to go way way way way wayy higher for the strength gravity to decrease since earth its really big

Anonymous No. 16095837

>>16095824
Thank you. Let's suppose a vacuum airship to deal with that.

>The air is technically a sea so even if you could makea lighter-than-air vehicle, it would just stop ascending and just float on the surface of the gases like a ship on water.
That's where the theoretical engine comes in.
>go as high up as possible with the air ship
>then boost engine for rest
Though reading up a bit I energy costly issue is not reaching the height but reaching orbital velocity but I don't understand what that means (in the context of reaching space) or why it's necessary. Can you or someone expand on that if it's true?

Anonymous No. 16096033

>>16095802
>1. Why can't a lighter than air vehicle reach space?
As it goes up it stops being lighter than air, you may notice that space has no air so what ever you are planning on sending up is definitely not lighter than space
>2. Why can't a lighter than air vehicle then use a traditional engine to move through space?
The advantage of starting from higher up is minuscule in comparison to the energy required to get to space. You still need 98% of the rocket even if you start as high as you can go with a balloon but now you are trying to haul a big rocket up there and the balloon would cost several times what the rocket does.
Basically you are stupid and you should feel bad.

Anonymous No. 16096208

>>16095837
>Let's suppose a vacuum airship to deal with that.
gravity still exists?
>>16096033
larping about rockets

if you all arent GPT then I am impressed by your sheer ignorance with pseudo intelligence

Anonymous No. 16096948

>>>/sci/sfg/