Dark Matter: What the Heck Is It?


| 11/28/2007 3:46:37 PM


Tags: Dark matter, video, lost-socks, non-baryonic matter, physics, science videos,

Dark matter makes up about nine-tenths of all matter in the universe, which is why it’s so frustrating that people have no idea what it really is. I used to think that dark matter was where lost socks, checks-in-the-mail, and campaign promises went to hide in the universe. But then I watched this handy sixty-second Instant Egghead video from Scientific American. In the video, George Musser explains the basic idea of dark matter using crumbs, coffee and a CD. Turns out that dark matter is non-baryonic matter, and even scientists don’t know much about it. —Brendan Mackie

You can watch the video below:

 
jiminy cricket_4
11/30/2007 12:24:00 AM

Nineteenth-century physicists believed that just as sound waves move through air, light waves must move through an all-pervading physical substance, which they called luminiferous ("light-bearing") ether. However, the Michelson-Morley experiment failed to find any signs of ether, and 18 years after that, Einstein's special relativity argued that light propagates through a vacuum. And now (after all this time) they believe in dark matter and dark energy (which is yet to be found). Tomorrow (or the next day) they will say that "gravity is myth and we have conclusive proof of a giant turtle and elephants that carry the world on their backs". They just human after all...


jiminy cricket_3
11/30/2007 12:23:41 AM

Nineteenth-century physicists believed that just as sound waves move through air, light waves must move through an all-pervading physical substance, which they called luminiferous ("light-bearing") ether. However, the Michelson-Morley experiment failed to find any signs of ether, and 18 years after that, Einstein's special relativity argued that light propagates through a vacuum. And now (after all this time) they believe in dark matter and dark energy (which is yet to be found). Tomorrow (or the next day) they will say that "gravity is myth and we have conclusive proof of a giant turtle and elephants that carry the world on their backs". They just human after all...