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Why Einstein was wrong about being wrong

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There really is a mysterious antigravity force. Einstein’s only mistake was in rejecting it.

By Michael D. Lemonick
If you want to get your mind around the research that won three astronomers the Nobel Prize in physics last week, it helps to think of the universe as a lump of dough — raisin-bread dough, to be precise — mixed, kneaded and ready to rise. Hold that thought.
Now consider Albert Einstein — not the wild-haired, elderly, absent-minded professor he became in his later years but a young, dashing scientist in his 30s. It’s 1916, and he’s just published his revolutionary general theory of relativity. It’s not necessary to understand the theory (thank goodness). You just have to accept that it gave scientists the mathematical tools they needed to forge a better understanding of the cosmos than they’d ever had.

There was just one problem. Relativity told physicists that the universe was restless. It couldn’t just sit there. It either had to be expanding or contracting. But astronomers looked, and as far as they could tell, it was doing neither. The lump of dough wasn’t rising, and it wasn’t shrinking.

The only way that was possible, Einstein realized, was if some mysterious force was propping up the universe, a sort of antigravity that pushed outward just hard enough to balance the gravity that was trying to pull it inward. Einstein hated this idea. An extra force meant he had to tinker with the equations of general relativity, but the equations seemed so perfect just as they were. Changing them in any way would tarnish their mathematical beauty…… Read the rest of this entry »

Written by physicsgg

October 14, 2011 at 11:10 pm

Nobel Prize in Physics 2011

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(update)

From left to right, Adam Riess, Brian Schmidt and Saul Perlmutter, who have won the 2011 Nobel Prize in Physics

The Nobel Prize in Physics 2011 has been awarded to Saul Perlmutter, Brian P Schmidt and Adam G Riess for discovering the accelerating expansion of the universe
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Three scientists shared the 2011 Nobel Prize for physics for the stunning discovery that the expansion of the universe is speeding up, meaning it may one day turn to ice, the prize committee said on Tuesday.

Scientists have known since the 1920s that the universe is expanding, as a result of the Big Bang some 14 billion years ago, but the discovery that this process is accelerating — and not slowing as many thought — rocked the research community.

“If the expansion will continue to speed up, the universe will end in ice,” the Nobel committee said in a statement.

Half of the 10 million Swedish crown ($1.5 million) prize money went to American Saul Perlmutter and the rest to two members of a second team which conducted similar work — U.S.-born Brian Schmidt, who is based in Australia, and American Adam Riess.

“We ended up telling the world we have this crazy result, the universe is speeding up,” Schmidt told a news conference by telephone after the award was announced in Stockholm.

“It seemed too crazy to be right and I think we were a little scared,” he added.

Nobel Committee for Physics at the Royal Swedish Academy of Sciences said in its statement that the discovery was made by looking at distant, exploding stars.

Instead of their light becoming brighter, it was fading.

“The surprising conclusion was that the expansion of the universe is not slowing down. Quite to the contrary, it is accelerating,” the committee said.

The acceleration is thought to be driven by dark energy, although cosmologists have little idea what that is.

They estimate that dark energy — a kind of inverse gravity, repelling matter that comes close to it — accounts for around three quarters of the universe.

guardian.co.uk – reuters.com

Yes…science.thomsonreuters.com‘s prediction is wrong again!! (anyway… read the commnent below…)

2011 Nobel Prize in Physics will be announced within the hour! Watch the live webcast here


http://youtu.be/DJNM0xEeamY

Written by physicsgg

October 4, 2011 at 10:02 am