Johnmo89

On 12/6/2021 at 7:03 PM, Kevin_Hall said:

I'm about to create my first rocket, therefore I would like to know if someone has already made ones. 
Please, share your experience of creating rocket models here. 

Tell me at least the scale of the rocket you want to build. What type of fuel do you want to use. What type of rocket. Or at least tell me what your budget is. Because the only answer that can be given to your question is YES, SOMEONE HAS ALREADY MADE ONES. Need more specifics. And the most important question: do you want to do everything completely byyourself or just buy different components and assemble in 15 minutes?

On 1/28/2022 at 5:02 PM, __Ben__ said:

Why do we assume we're in a normal place in the universe, when we're on a planet in a solar system in a galaxy that supports life?

Isn't the vast majority of the universe the space between things?

Why is it we ignore the small scales when concluding the universe is isotropic and homogeneous. When anything that is applied to is true. A billard ball is apparently more uneven than the planet earth when enlarged to the same scale.

Isn't a typical place in the universe somewhere in a void between galaxies.

Isn't it also a place in the extreme distant future?

Interesting opinion. But why do you think that our planet is in some special place? Yes, there are optimal conditions for the origin of life, but don't you think that there could be thousands of such planets in the universe? So what makes our planet so special?