I've had that question in my head for the longest time... nice to see that this video pretty much answers why our star system is .. "flat"

...and here I was all this time thinking that she was still just 'developing'.

and this video answers NOTHING. THIS STUPID FUCK WASTED 3 MINUTES OF MY LIFE. "galaxies are flat because a computer sim told us" FUCK UUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU!!!!!!!!!!!!!!!!!!!!


U CUNT!!!!!!!!!!!!!!

GO BACK TO PLAYING MINECRAFT

Maybe watch it again and pay attention? He said nothing of computer simulations....

In an isolated system (our galaxy) where there is angular momentum (the spinning about the galaxies central axis), the angular momentum is conserved (it never stops spinning with respect to how much mass is in it, and how far from the centre that mass is).

The objects floating above and below that central plane are NOT in an angular momentum vector, just simply moving about in a chaotic motion. Given enough time, these objects will collide, cancelling out their non-plane motions.....

None of this was derived from a computer model, but it does show it in practice near the end by using one.

The distinction is important.

I'm not especially satisfied with that explanation.

You can see a simplified example of these collisions here, if you jump to the 2:45 mark:
http://videosift.com/video/Gravity-Visualized

Funny but I always thought everything just aligned to the magnetic poles of the biggest object.

I thought it was the big intergalatic spatula that space-traveled across the cosmos to flatten solar systems into flat planetary buns. Gee was I wrong.

Durrrr.... you start your 'explanation' by saying our galaxy rotates around a central axis and momentum is conserved... ok
BUT THAT DOES NOT MEAN IT SHOULD BE FLAT.
You are starting your 'explanation' with the the presumed result.
ie. You are explaining NOTHING

Nice ! I like that... Have you read the 'Electric Universe" ?
I personally havent yet... but it sounds FAR more plausable than this video pile of shit

Are you trying to be funny or are you just that unable to read?

The explanation doesn't start with the "presumed" result, it starts with the observed result. We know it's flat, the question is why?

It doesn't start out flat. It starts as a big cloud, but it spins on one axis. After a long time (like say, the several billion years it took for humans to evolve to witness it), it flattens out due to reasons explained both in the video and patiently to you by @charliem.

Yes it does, thats excactly what it does mean. Try standing on the floor spinning around, if you spin fast enough, you'll feel that your arms starts tending towards a jesus-like pose, if you were somehow artificially accellerated to spin around some point in your torso to say a million spins a second, your arms and legs would be pulled outward, and your body would be squeezed more and more and stretched more and more from the center. now You wouldnt actually become a disc, because there wouldnt be anything to stop the centrifugal force from ripping you apart, but in space that center is also the center of mass and gravity, so stuff gets pulled towards the center while the whole thing is spinning, the spinning stuff gets pulled outward from the center of the spinning direction by the spinning, but also kept in orbit because of gravity.

It makes complete sense if you sit down and think about it, there really is nowhere else to go but a disc.

Keep in mind that the movements in the blob at the beginning can be completely random, its just that by chance, there is one way, when all the vectors are added up, that the blob spins more than any other. and that eventually becomes the direction of the planets., because all the other movements cancel out.

SCIENCE BITCH!

Liberal propaganda!

Jesus made it all flat!