robit_lover
robit_lover t1_j6ns886 wrote
Reply to comment by lets_bang_blue in If the concepts of Project Orion were proven, why don't we use them for space guns? by [deleted]
I don't know that I would call over 10 000G's "not crazy high".
robit_lover t1_j61gwvd wrote
Reply to comment by me_too_999 in What time is it on the Moon? - Satellite navigation systems for lunar settlements will require local atomic clocks. Scientists are working out what time they will keep. by speckz
It does, but the same is true for satellites, and the answer for both is to build a clock that if run on earth would be wrong, but in it's designed environment is perfectly synced with clocks on earth.
robit_lover t1_j61gl1v wrote
Reply to comment by H-K_47 in What time is it on the Moon? - Satellite navigation systems for lunar settlements will require local atomic clocks. Scientists are working out what time they will keep. by speckz
The problem is that if you wake up at the same time every morning, every day you're 37 minutes more out of sync with sunrise and sunset, which would be unacceptable when spacewalks are common.
robit_lover t1_j5ufqj9 wrote
Reply to comment by akriti12_ in In 1971, three cosmonauts Dobrovolski, Volkov, and Patsayev passed away due to a valve malfunction in the Soyuz 11 capsule. They remain the only people who have passed away above the Kármán Line - the defining line of space. by sciencekenyon
A valve opened and let all the air out.
robit_lover t1_iy7rayi wrote
Reply to comment by Radiant_Nothing_9940 in what would be different if we had two moons by Any_Palpitation_3110
To add, the earth and moon produced drag on each other, and since earth is so much larger it slowed the moon down enough that it doesn't rotate relative to earth anymore.
robit_lover t1_ixsthjo wrote
Reply to comment by peddroelm in NASA’s Orion capsule captures gorgeous close-up pictures of the moon by Miguenzo
The purpose of this flight is to test the system and verify that it is capable of carrying astronauts on its next flight.
robit_lover t1_ixstdnn wrote
Reply to comment by sonoma95436 in NASA’s Orion capsule captures gorgeous close-up pictures of the moon by Miguenzo
There is nobody who uses the term "stepping stone to Mars" in the literal sense that a mission to Mars will first go to the moon. The term is used to describe using the moon as a test bed to develop the technology needed for Mars in a more forgiving environment. In terms of launch vehicle performance, the moon is almost exactly as difficult to reach as mars, and the life support systems needed for the long duration missions planned will be directly transferrable to Mars.
robit_lover t1_j6xgnh6 wrote
Reply to comment by Twidom in Have you ever thought how/what it would look like to wander through space forever? by Twidom
Relativity, the faster you move the slower you experience time. It means you could never actually get to the speed of light, but the math says going at the speed of light you wouldn't experience time at all.