[QUOTE=Uber|nooB;44596614]oh god it looks terrifying
[img]http://upload.wikimedia.org/wikipedia/commons/thumb/4/4f/R2_climg_legs_demo.jpg/406px-R2_climg_legs_demo.jpg[/img][/QUOTE]
More useful than some of the other lower bodies would be in microgravity.
[img]https://upload.wikimedia.org/wikipedia/commons/thumb/f/fd/Robonaut_2_and_Centaur_2.jpg/690px-Robonaut_2_and_Centaur_2.jpg[/img]
The creepiness is just a bonus.
shame they never deployed a bipedal Robonaut to the moon like they wanted to
[editline]20th April[/editline]
is the new EVA suit a new design or just literally a new suit?
[QUOTE=Midas22;44596288]Surely the weight of unloading cargo doesn't really matter up there.[/QUOTE]
They may float, but they can still (and WILL) crush you to death.
[QUOTE=danharibo;44596642]More useful than some of the other lower bodies would be in microgravity.
[IMG]https://upload.wikimedia.org/wikipedia/commons/thumb/f/fd/Robonaut_2_and_Centaur_2.jpg/690px-Robonaut_2_and_Centaur_2.jpg[/IMG]
The creepiness is just a bonus.[/QUOTE]
WTF is the point of that. I literally cannot understand why anyone thought that was a good idea.
[QUOTE=Jsm;44596343]Hopefully it reminds people just how expensive it is to get even small amounts of cargo into space.
Talking of the cargo though, the payload has some interesting things in it. Including some stuff to try and grow food in space.
[url]http://en.wikipedia.org/wiki/SpaceX_CRS-3#Primary_payload[/url][/QUOTE]
Optical Payload for Lasercomm Science (OPALS) has got to be the coolest acronym-thing I've seen in a while.
[QUOTE=danharibo;44596642][img]https://upload.wikimedia.org/wikipedia/commons/thumb/f/fd/Robonaut_2_and_Centaur_2.jpg/690px-Robonaut_2_and_Centaur_2.jpg[/img]
The creepiness is just a bonus.[/QUOTE]
[media]http://www.youtube.com/watch?v=FwkfE71F82A[/media]
Relevant to this, so much.
[QUOTE=Midas22;44596288]Surely the weight of unloading cargo doesn't really matter up there.[/QUOTE]
In space you're weightless, not massless, weight =/= mass.
[QUOTE=l337k1ll4;44596885]In space you're weightless, not massless, weight =/= mass.[/QUOTE]
I'm pretty sure he knows that, but the point is that in microgravity moving hundreds of pounds IS easy. It requires a shitload of less energy to move around, because you don't need an contrary force to cancel out the gravitational acceleration.
If you need to move a heavy object 20 meters in space, you only need to give it a small push to give it a small velocity, and then stop it where you want to leave it. For an example, by pushing a 200 kg object with a force of 10 newtons for two seconds, you give it a relatively safe velocity of 0.1m/s. You wait roughly three minutes and stop it with an equally large impulse. The energy required for the whole process is almost negligible. 10 Newtons is about the same force that is required to lift an object of one kilogram.
[QUOTE=Midas22;44596288]Surely the weight of unloading cargo doesn't really matter up there.[/QUOTE]
Try playing Kerbal Space Program. And if you manage to get something into orbit, try telling me that with a straight face again.
[QUOTE=Impact1986;44597243]Try playing Kerbal Space Program. And if you manage to get something into orbit, try telling me that with a straight face again.[/QUOTE]
Because KSP is what NASA and SpaceX use for their simulations, right? I think I'll just take everyone elses word for what happens.
[QUOTE=Desuh;44596461]That looks like a screenshot from a game.[/QUOTE]
Oh great, now you gave the moon landing deniers more food for thought.
[editline]20th April 2014[/editline]
[QUOTE=Midas22;44597261]Because KSP is what NASA and SpaceX use for their simulations, right? I think I'll just take everyone elses word for what happens.[/QUOTE]
Actually, NASA worked with the developers of KSP on the recent mission pack involving redirecting asteroids. The equations don´t change.
What happens to dragon after its unloaded?
Do they just fling it into space, or is it recovered in some way?
Actually I think they kinda do since KSP uses a SOI system which doesn't allow such thing as Lagrange points or other consideration taking multiple bodies into account.
This doesn't concern the whole mass problem, though.
[QUOTE=Cmx;44597506]What happens to dragon after its unloaded?
Do they just fling it into space, or is it recovered in some way?[/QUOTE]
It's deorbited back into the ocean where it's recovered and reused
[QUOTE=danharibo;44596325]F=Ma no-matter what the local gravity is like. Sure, things don't fall to the floor but a 10kg object is a 10kg object.[/QUOTE]
No normal forces or the like means that you only need a force equivalent to the mass or greater to move it. It should still be much easier.
[QUOTE=Cmx;44597506]What happens to dragon after its unloaded?
Do they just fling it into space, or is it recovered in some way?[/QUOTE]
Its currently the only cargo ship that can be recovered. It will land in the ocean full of experiments and other cargo for NASA ground scientists to look at.
[QUOTE=kaze4159;44596299]For a moment I was imagining an actual dragon latching onto the ISS, biting at the airlocks :v:
Awesome to see SpaceX's program is going strong though[/QUOTE]
Smaug was only supposed to destroy laketown!
[QUOTE=Cone;44596670]shame they never deployed a bipedal Robonaut to the moon like they wanted to
[editline]20th April[/editline]
is the new EVA suit a new design or just literally a new suit?[/QUOTE]
probably updated suit but same design overall, those Eva suits have been up there a good 10 years
[QUOTE=Cone;44596344]weight and mass still matter in zero-g/microgravity. afaik if you try to move something with a greater mass than yourself in freefall or zero gravity, then the force you exert just pushes you away from it.[/QUOTE]
Almost, but not quite. Since the force and reaction force are (always) equal, everything is accelerated inversely proportional to its weight.
You can still push heavy things around, but you'll either launch yourself in the opposite direction or transfer the momentum to something else like the space station.
[QUOTE=danharibo;44596642]More useful than some of the other lower bodies would be in microgravity.
[img]https://upload.wikimedia.org/wikipedia/commons/thumb/f/fd/Robonaut_2_and_Centaur_2.jpg/690px-Robonaut_2_and_Centaur_2.jpg[/img]
The creepiness is just a bonus.[/QUOTE]
[IMG]http://4.bp.blogspot.com/-XAcI3L7crKo/TiXl_3k4HeI/AAAAAAAAAE4/H82QR6gG1IM/s1600/young-man-thumbs-up.jpg[/IMG]
back at ya ro-bro
Sorry, you need to Log In to post a reply to this thread.
