Debian for the Transbians (trans lesbians).
So, the major issue with settling moon is resource availability: water (!), carbon, fertile soil, and energy.
On the moon you have none of that. Maybe, with a lot of luck, you find water somewhere. Then you need carbon, energy during the long moon nights, and soil that isn’t razor sharp particles.
On Mars, you have all of them: low concentrations of water in the atmosphere, carbon from carbon dioxide in the atmosphere, soil that isn’t razor sharp (thanks to erosion), and the nights are short enough that you can make it through them.
Yeah I’ve been thinking about condensing the water out of the air, too. Problem is: how do you do that? If you use chemical dessication agents, then it’s effectively the same as if you let the soil absorb the water from the atmosphere. Just that the soil is already there and you don’t need to artificially manufacture dessicants. So it’s a bit simpler.
thanks, the link is interesting.
The value proposition would be that it is important to understand the exact radiation pattern/schemes if we ever want to routinize spaceflight. In other words: effective solutions (to the problem of radiation) requires detailed knowledge of what the problem actually is, in other words, what kind of radiation are we talking about.
Do you have any citations for this? I’d like to investigate this.
First of all, yes, attempts have been made, but:
There’s things that I like about myself that I cannot put into words; it’s more a feeling.
The nazis, too, had a lot of power and yet they lost WW II.
it’s called the Paradox Of Tolerance.
Yeah there’s actually documentaries about this: like this (it’s in german though)
… hearkens back to basic Judeo-Christian values of kindness, human dignity, humility and prosperity.
says the Republican
I was more talking about the quantitative split in Particle Radiation/Electromagnetic Radiation.
unfortunately, the preview of the book doesn’t show for me
Oh yes, of course:
I guess the formula to calculate the momentum p of light is p = E/c where c is the speed of light and E is the energy.
So, if the Energy is 10 MW, or alternatively, 10 MJ/sec, then E = 1e7 J. c = 3e8 m/s. p = E/c = 1e7/3e8 J/(m/s) = 1e7•1e-17/3e8 kg•(m/s)²/(m/s) = 3e-2 kg•(m/s).
(Since E = m•c², 1 kg • c² = 1 kg • (3e8 m/s)² = 1e17 kg•(m/s)².)
Now, if we assume that that momentum gets transferred to the sail, which weighs approximately 20 kg, then we get the velocity of the sail: v = p/20 kg = 3e-2 kg•(m/s)/20 kg ≈ 1e-4 m/s. And this transfer of momentum happens every second, so the acceleration is roughly 1e-4 m/s², or 0.001 m/s².
yeah sorry i didn’t mean to sound rude. It’s just that I’ve heard too much “corporate bullshit talk” that i can’t just stay calm when i hear it.
I just did some quick maths (and assuming my formulas are correct), beaming at it with a 10 MW laser would cause it to speed up by 0.001 m/s² assuming the sail has 20 kg mass. So not very much, but also not nothing.
make sure you hump that couch when you see it!
ftfy
Angel with a Shotgun
https://inv.nadeko.net/watch?v=cvaIgq5j2Q8