>> ^KamikazeCricket: >> ^raverman: That's the beauty of physics: I imagine two galaxies colliding look very similar.
You imagine wrong.
WHile I understand two galaxies wouldn't look like that, would you care to explain the physcis behind it? There have been no instances that we know of where two galaxies collide head on perfectly like the rings above. I'm assuming it's because galaxies are largely empty space that does not move like smoke?
>> ^Mcboinkens: WHile I understand two galaxies wouldn't look like that, would you care to explain the physcis behind it? There have been no instances that we know of where two galaxies collide head on perfectly like the rings above. I'm assuming it's because galaxies are largely empty space that does not move like smoke?
It's prob because galaxies are hundreds of thousands of light years across, and the incredible gravitational pulls of each galaxy will act on each other long before they physically touch. They won't transfer all their momentum in a radial direction like those smoke rings cuz of the gravity.
Stumble This
http://www.technologyreview.com/business/23102/
That's the beauty of physics: I imagine two galaxies colliding look very similar.
You imagine wrong.
Brilliant little clip! I guess the good stuff can sift at 15 votes...
>> ^raverman:
That's the beauty of physics: I imagine two galaxies colliding look very similar.
You imagine wrong.
WHile I understand two galaxies wouldn't look like that, would you care to explain the physcis behind it? There have been no instances that we know of where two galaxies collide head on perfectly like the rings above. I'm assuming it's because galaxies are largely empty space that does not move like smoke?
timeshift
Brilliant little clip! I guess the good stuff can sift at 15 votes...
What's timeshift about this video? That's real speed. I'll give someone the opportunity to prove me wrong first, but then, it's out brohim.
WHile I understand two galaxies wouldn't look like that, would you care to explain the physcis behind it? There have been no instances that we know of where two galaxies collide head on perfectly like the rings above. I'm assuming it's because galaxies are largely empty space that does not move like smoke?
It's prob because galaxies are hundreds of thousands of light years across, and the incredible gravitational pulls of each galaxy will act on each other long before they physically touch. They won't transfer all their momentum in a radial direction like those smoke rings cuz of the gravity.
That's my bs, but here is a page from the official hubble site with lots of pics of colliding galaxies:
http://hubblesite.org/newscenter/archive/releases/2008/16/image