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The End Of Gravity As a Fundamental Force
An anonymous reader writes "At a symposium at the Dutch Spinoza-instituut on 8 December, 2009, string theorist Erik Verlinde introduced a theory that derives Newton's classical mechanics. In his theory, gravity exists because of a difference in concentration of information in the empty space between two masses and its surroundings. He does not consider gravity as fundamental, but as an emergent phenomenon that arises from a deeper microscopic reality. A relativistic extension of his argument leads directly to Einstein's equations." Here are two blog entries discussing Verlinde's proposal in somewhat more accessible terms.
Update: 01/12 04:48 GMT by KD : Dr. Verlinde has put up a blog post explaining in simpler terms the logic of the gravity from entropy paper. He introduces it with: "Because the logic of the paper is being misrepresented in some reports, I add here some clarifications."
Update: 01/12 04:48 GMT by KD : Dr. Verlinde has put up a blog post explaining in simpler terms the logic of the gravity from entropy paper. He introduces it with: "Because the logic of the paper is being misrepresented in some reports, I add here some clarifications."
At least half the comments on this story will boil down to one or more of the following:
There. That should save everyone some time.
The correlation between ignorance of statistics and using "correlation is not causation" as an argument is close to 1.
Damn it. I knew I should have sold back my college Physics textbooks when I had the chance...
"He does not consider gravity as fundamental, but as an emergent phenomenon that arises from a deeper microscropic reality."
If that doesn't make you the life of the party in one fell swoop, NOTHING ever will.
Like when you study information theory because don't like physics, and the basis of physic world, like gravitation, turns to be information theory.
Indeed. The truth is, it is all a dream. My dream, in fact. It all emanates from me, I designed it all based on what you know as mathematical principles.
That assertion can also never be proved wrong, and it is mathematically sound.
Qxe4
I have a gut feeling that golden ratio will fit into all this somewhere.
Provided the golden ratio is exactly 42.
Those who can make you believe absurdities can make you commit atrocities. - Voltaire
I think we could put this to the test in the real world. We could gather various entities, some of which are known to have a very low concentration of information, like marketing people and bureaucrats, and see whether they cause a local reduction in gravity.
So... information wants to be free?
-- Joren
Will science leave me anything I learned in class ?
The Wise adapts himself to the world. The Fool adapts the world to himself. Therefore, all progress depends on the Fool.
What's your degree in? Ecofeminism, or postmodern comparative religion?
Don't blame me, I voted for Baltar.
The one funny thing about the way the majority of people use math, "close does count", until you get to a certain advanced point. Then we say "this works for all but a few special cases... close enough"
Obviously Newtonian gravity is much more understandable to your average person than say general relativity and also offers a good aproximation of expected behaviors of the physical world.
I'd say there is a good chance it is all one Unified Field. When including torque in Einstein's equations (and not assuming you are locked on the spinning object), this guy's solution works from the micro to the macro. Check it out.
http://www.theresonanceproject.org/
Indeed. The truth is, it is all a dream. My dream, in fact. It all emanates from me, I designed it all based on what you know as mathematical principles.
That assertion can also never be proved wrong, and it is mathematically sound.
You're pretty confident for a figment of my imagination....
WARNING! This girl exceeds the MAXIMUM SAFE standards established by the FDA for BRATTINESS
As part of a psychological experiment, two single men, a physicist and mathematician, were placed in an otherwise empty room with a beautiful naked women at the far end.
They were instructed that they'd be allowed to close half the distance to the women every 10 minutes. Disgusted at the obvious subterfuge, the mathematician walked away in disgust. But the physicist stayed behind, occasionally glancing at his watch.
The experimenters looked puzzled, then asked the physicist, "You do realize, of course, that mathematically speaking, you can never actually reach the woman?"
"Naturally", replied the physician, looking up. "But I can sure get close enough for all practical purposes!"
Irony: Agile development has too much intertia to be abandoned now.