2011 Nobel Prize in Physics

Announcement of the 2011 Nobel Prize in Physics by Professor Staffan Normark, Permanent Secretary of the Royal Swedish Academy of Sciences, on 4 October 2011. Read more about the 2011 Nobel Laureates in Physics, Saul Perlmutter, Brian P. Schmidt and Adam G. Riess on http://www.nobelprize.org/

Category:

Science & Technology

Tags:

• Nobel Prize in Physics
• Nobel Prize winner
• Nobel Laureate
• Saul Perlmutter
• Brian P. Schmidt
• Adam G. Riess
• universe

[Canadianloyalist123]

@Doommage33 No ,your internet connected to a network which now acts as a wormhole and this is an alternate reality conversation, all explained in string theory.

[Doommage33]

i finally found a youtube conversation where an intellectual argument is taking place....am i dreaming?

[deedubya286]

Yes, the accelerating expansion does look like anti-gravity but dark matter has regular gravity and, as the old joke goes, gravity sucks.

Seriously, dark matter was discovered precisely because of it's plain, old, ordinary positive gravitational effect on the orbital velocities of the stars in the outer regions of galaxies. (Google "Vera Rubin")

Whatever dark matter turns out to be, WIMPS, MACHOS, or something else, it is defined as a source of unknown, attractive gravity not anti-gravity.

[zukodude487987]

@deedubya286 You:I don't see how dark matter could be responsible for expansion since its only interaction with baryonic matter is through gravitational attraction.

Me: Gravity is a part of dark matter and The expansion of the universe can be seen as anti-gravity, because it does the opposite of gravity. Perhaps the dark matter gives our galaxies more speed and the halos of dark matter of each galaxy pushes each other away while caarrying the individual galaxies with them.

[deedubya286]

@zukodude487987 I don't see how dark matter could be responsible for expansion since its only interaction with baryonic matter is through gravitational attraction.

As far as any other explanations for the accelerating expansion, I don't think anything is off the table at this point. It's the biggest unknown in cosmology today.

If you want an excellent explanation of some of this I highly recommend Lawrence Krauss's lecture titled "A Universe From Nothing". It's on YouTube.

[zukodude487987]

@deedubya286 @deedubya286 Who is to say that dark matter isn't the cause for expansion or maybe the universe is curved like a sphere and loops back on to itself. Some said that space itself might be expanding, but perhaps its only been stretched by some extra-dimensional force. Or maybe our space has multiple galaxy bubbles and we are colliding into one.

[deedubya286]

@n310up Funny that you never saw fit to mention this to anyone before the results were announced in 1998.

I guess the Mama Bear's bed being too soft in Goldilocks obviously refers to the existence of gravitationally collapsed black holes, doesn't it?

There are lots of fairy tale videos on YouTube for you people to post comments on. Why don't you leave the physics videos to those of us who understand them?

[deedubya286]

@zukodude487987 That's true but it was always assumed that it was slowing down due to gravity. The big question was "is it slowing down enough to stop and re-collapse?"

These teams discovered that it is, in fact, speeding up due to the previously undiscovered dark energy. In essence they discovered 75% of our universe that was previously unknown and that we didn't even know was missing.

[socratus1]

What was before egg or chicken? Oh, I know this question is very old and does not have answer Therefore I will ask a simpler question What was before big bang  or vacuum ? Nobody knows the reason of big bang I know Action when God compressed the whole Universe into his palm scientists named singular point And action when God opened his palm scientists named Big Bang # Dark Energy may be Vacuum ww eurekalert. org / pub releases /2007 – 01 uoc – dem 011607.php

[Tomislavv2]

@dboyzumik1

Muslim do lie extensively. whatch how this "miracle of Quran" is debunked

watch?v=JyqkAFCaNQM

Another thing which is obvious to everyone Muslims are living in middle eages,their contribution to civilization today is reflected by amputations,mutilations,Islami­c pedophilia and genocides against everyone.