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re: Astronaut who spent 197 days on the ISS shows how hard it is to walk again
Posted on 3/22/19 at 9:56 am to DavidTheGnome
Posted on 3/22/19 at 9:56 am to DavidTheGnome
Yup, you have to reteach your brain the difference between up and down and left and right. It can take from a couple of days to a couple of weeks for most.
1
Posted on 3/22/19 at 9:57 am to winkchance
quote:
have to reteach your brain the difference between up and down and left and right.
had to do that after my St. Paddy's day crawfish bawl, the struggle is real
This post was edited on 3/22/19 at 10:01 am
Posted on 3/22/19 at 9:58 am to DavidTheGnome
His panty hose are too tight
Posted on 3/22/19 at 10:00 am to TigerCoon
tight panty hose and trying to walk in a straight jacket. bad combo
Posted on 3/22/19 at 10:02 am to MorbidTheClown
quote:
ight panty hose and trying to walk in a straight jacket.
sounds like a drunk bet
Posted on 3/22/19 at 10:03 am to 777Tiger
Posted on 3/22/19 at 10:06 am to TigerMyth36
quote:
Lucy In The Sky
she drinks Shiner
Posted on 3/22/19 at 10:11 am to 777Tiger
That had nothing to do with her being an astronaut and everything to do with bitches be crazy. Which is coincidentally why women shouldn’t be astronauts.
Posted on 3/22/19 at 10:14 am to kballa6
Do they do a baseline interview to determine fidelity as well?
Posted on 3/22/19 at 2:02 pm to Kentucker
quote:
The only mimic of gravity is constant acceleration.
this can be easily dont in rotational simulated gravity stations
Posted on 3/22/19 at 2:11 pm to Kentucker
quote:Whybis that a responsibility?
Only A.I. will be able to travel space long term. It is the responsibility of the human race to create its evolutionary successor, A.I.
Posted on 3/22/19 at 7:00 pm to CarRamrod
quote:
this can be easily dont in rotational simulated gravity stations
No, it can't. In weightless conditions, when a cylinder begins to spin, its contents will experience an initial acceleration in the direction of the rotation. However, their speed will catch up with that of the cylinder and they will merely rotate, weightless as ever, with it.
Posted on 3/22/19 at 7:03 pm to OysterPoBoy
quote:
And the guys who “went to the moon” had no trouble hopping around like 4 year olds. NASA better get their story straight.
are you a comedian or a dumbass?
Posted on 3/22/19 at 7:06 pm to Kentucker
quote:
General Relativity shows that gravity is caused by mass only. The only mimic of gravity is constant acceleration.
But doesn’t Einstein say that gravity and acceleration are the same thing? So it wouldn’t be mimicing I don’t thing but just a different cause of it?
Posted on 3/22/19 at 7:10 pm to GeauxxxTigers23
quote:
Whybis that a responsibility?
Because the human race has reached its zenith. Our evolution as biological creatures has reached a wall, an end point. The logical next step in the evolution of intelligence is for humans to create their successor, non-biological life.
Humans cannot leave the planet. We were great explorers and adventurers on earth because the new environments we encountered were the same as those we left. Now we face exploration of space. We can't go there to live. We can't adapt to space environments.
However, we can create artificial life that will thrive in almost any environment, A.I. To continue evolution and to spread life into the Universe, we must use our abilities to design and create A.L. It's only logical.
Posted on 3/22/19 at 7:19 pm to DavidTheGnome
quote:
But doesn’t Einstein say that gravity and acceleration are the same thing?
Yes, if you think of gravity as a well caused by mass. A smaller mass will fall towards a larger mass at an accelerating speed. One could call this "gravitational acceleration" I suppose.
However,
quote:
So it wouldn’t be mimicing I don’t thing but just a different cause of it?
what we think of as "conventional acceleration" has nothing to do with gravity, except the overcoming of its strength, of course. We think of conventional acceleration as energy pushing an object faster and faster. When this acceleration is constant and consistent, it can mimic the effects of gravity.
Posted on 3/22/19 at 7:25 pm to Kentucker
Do they not do any kind of resistance training? It wouldn’t help balance, but could help to not lose muscle.
Posted on 3/22/19 at 7:30 pm to Kentucker
Einsteinian views of gravity might be more technically right, but the Newtonian view is perfectly adequate for the conversation you’ve been having here. Using centripetal acceleration to mimic gravity is a viable option in a microgravity environment given that the radius of rotation is adequately large.
This post was edited on 3/22/19 at 7:34 pm
Posted on 3/22/19 at 7:59 pm to Ross
quote:
Einsteinian views of gravity might be more technically right, but the Newtonian view is perfectly adequate for the conversation you’ve been having here. Using centripetal acceleration to mimic gravity is a viable option in a microgravity environment given that the radius of rotation is adequately large.
Centripetal is the "force" that prevents the moon from floating out of the Earth's orbit, for example. It's a balance of the push of spacetime (many say the gravitational attraction of earth) on the moon into the earth's gravitation well, and the velocity of the moon in its orbit of the earth.
I think you're mistaking centripetal for centrifugal in this case. Centrifugal "force" is commonly mistaken to be independent of gravity. The acceptance of the idea that the contents of a spinning container will be pushed towards its outside wall is almost universal. Most of us have been on carnival rides that spin and we feel pulled towards the wall of the ride. We can even lift our feet into the air without falling to the floor of the ride.
This can only happen in an environment with gravity. It cannot take place in the weightlessness of spacetime. The container and its contents are all weightless and if the container begins to rotate, its contents will, too. Gravity is not generated by spinning a cylinder.
Gravity is the effect of mass bending or warping spacetime around it.
Posted on 3/22/19 at 8:11 pm to Kentucker
quote:
what we think of as "conventional acceleration" has nothing to do with gravity, except the overcoming of its strength, of course. We think of conventional acceleration as energy pushing an object faster and faster. When this acceleration is constant and consistent, it can mimic the effects of gravity.
I’ll need to think about that. I’m not disagreeing at all about the cause of gravity. I’m saying gravity is an effect though, acceleration, as an object falls toward another due to mass warping spacetime. Acceleration is the increase in velocity, it can be due to a push like a rocket or a "pull" like falling into an objects gravitational warp of spacetime. The end result being the same thing, a change in velocity, so acceleration.
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