Dark Matter's Rival: Ether Theory Challenges "Invisible Mass"
National Geographic News
Late last month scientists working at NASA's Chandra X-ray Observatory announced that they had found proof of dark matter, the theoretical substance believed to make up more than a quarter of the universe.
But Glenn Starkman, a cosmologist at Case Western Reserve University in Cleveland, Ohio, is hitting back with a blast from the past. He argues that dark matter might not exist and that the long-discredited substance known as ether is actually what influences gravity in the cosmos.
Dark matter is the prevailing scientific explanation for a puzzling phenomenon: Galaxies behave as if they contain much more mass than is visible to astronomers (see a computer simulation of dark matter).
According to theory, dark matter is the invisible mass that accounts for this behavior, and the undetectable substance makes up five times more of the universe than the matter we can see.
Starkman's controversial counterproposal is that the presence of ether in the universe better explains the galaxies' behavior.
His theories were recently reported in the August 26 issue of New Scientist magazine.
"Galaxies spin faster than they should, given the amount of matter we see in them. The possibility we've gone with for a long time is that there's some unaccounted-for mass generating that extra gravity," Starkman said.
"But the other possibility is that the amount of mass we see generates more gravity than we thought. That's where ether comes in."...cont'd
http://news.nationalgeographic.com/news/2006/09/060908-dark-matter.html ___________________________________________________________________________________________________
We had two bags of grass, seventy-five pellets of mescaline, five sheets of high-powered blotter acid, a salt shaker half-full of cocaine and a whole galaxy of multicolored uppers, downers, screamers, laughers.... also a quart of tequila, a quart of rum, a case of Budweiser, a pint of raw ether, and two dozen amyls.... But the only thing that worried me was the ether. There is nothing in the world more helpless and irresponsible than a man in the depths of an ether binge...." --Hunter S. Thompson, Fear and Loathing in Las Vegas
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Ether
Having postulated the existence of the ether as the medium in which light travels it becomes interesting to determine the properties of this material. First and foremost, since the light from distant stars does reach us, we must assume that the ether permeates the whole universe up to its farthest reaches. We must then imagine that the Earth plunges through this ether as it circles the Sun. The ether must then be very tenuous, for otherwise the friction would have stopped the Earth long ago. Let us now derive some other predictions derived from the ether hypothesis
As the Earth moves through this ether a kind of ``ether wind'' must be present on Earth's surface. To see why this should happen consider the following analogy. Imagine a windless day in which you take a ride in your red convertible which, unfortunately, has no windshield. As you speed up you will feel the air blowing, the faster you go, the stronger this wind is. In the same way, replacing air -> ether and red convertible -> earth , a very sensitive apparatus on the surface of the earth should detect and ether wind.
So, can the ether wind be detected? Apparently yes! The idea for the first experiments is based on the following argument. Imagine yourself back in your convertible (with no windshield) taking your nagging grandmother to the store; she sits in the back seat...it's safer. She talks all the time, but, fortunately, her words get blown back by the wind. In contrast she hears everything you say, for your words get blown back by the wind, right into her ears (good grief!). In the same way, as we stand on Earth, the ether wind should blow back the light coming from the stars. At different times of the year, the ether wind blows in different directions since the earth is moving in different directions, hence the observed positions of the stars should change (see Fig. 5.6)... and they do!
cont'd --
http://physics.ucr.edu/~wudka/Physics7/Notes_www/node67.html