luke strawwalker
Well-Known Member
- Joined
- Jan 18, 2009
- Messages
- 9,147
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- 40
I thought Sandra did a great job and the imagery was great, however I just had a hard time how stupid some of the things were. I don't think anyone on a spacewalk would be zooming around and doing spins etc, let alone right next to others doing a repair....and how cavalier and fast he would approach objects, and my favorite, hop in a capsule and hit three switches and you are in a re-entry......I don't think given the ramifications of floating off in space, you would be hopping around and grabbing things to navigate around, I think you would have at least one hand firmly clamped on something before you let go of another.....There was a lot good about the movie though.
Frank
Quite right... spacecraft doing rendezvous don't zip up on each other-- they "sneak" up on each other, coming in at inches per second at most... there's a reason for that... the faster the spacecraft (or astronaut in an "MMU" or whatever) goes, the more fuel it takes to accelerate them relative to the other object... AND the more fuel it takes to DECELERATE the vehicle to a stationary position (docking or station keeping rendezvous).
Clooney's acrobatics in his MMU were very unrealistic for that reason-- and after a few minutes of that, he wouldn't have had any propellant left for anything else...
Another issue was the tethering together and going into wild gyrations... it's cinematically interesting (and good fiction) but very unrealistic-- they would need to be in a pretty much fixed relationship to each other to keep the CG and stuff in line while thrusting around in the MMU... at the very least, he would "take up the slack" in the tether and THEN apply a burst of thrust to get them going... not "whip her around" on the end of a tether, wasting fuel constantly trying to get them going in the right direction...
Later! OL JR