yoginka: (thinking)
[personal profile] yoginka
Как-то мимо меня прошло, что, оказывается, уже несколько лет считают, что, Вселенная расширяется с ускорением, т.е. не просто мир становится менее плотным, а еще и с возрастающей скоростью:
http://en.wikipedia.org/wiki/Dark_energy
А ускорение это началось 5 млрд. лет назад (порядка возраста Земли).

John Archibald Wheeler: "It from bit"

"'It from bit' symbolizes the idea that every item of the physical world has at bottom—a very deep bottom, in most instances—an immaterial source and explanation; that which we call reality arises in the last analysis from the posing of yes–no questions and the registering of equipment-evoked responses; in short, that all things physical are information-theoretic) in origin and that this is a participatory universe."

"Participatory Anthropic Principle" (PAP)

[!!! Important:]In 1979, Wheeler spoke to the American Association for the Advancement of Science (AAAS), asking it to expel parapsychology, which had been admitted ten years earlier at the request of Margaret Mead. He called it a pseudoscience...

scientists may "regard the physical world as made of information, with energy and matter as incidentals."

"Entropy, if considered as information (see information entropy), is measured in bits. The total quantity of bits is related to the total degrees of freedom of matter/energy.

In a given volume, there is an upper limit to the density of information about the whereabouts of all the particles which compose matter in that volume, suggesting that matter itself cannot be subdivided infinitely many times and there must be an ultimate level of fundamental particles. As the degrees of freedom of a particle are the product of all the degrees of freedom of its sub-particles, were a particle to have infinite subdivisions into lower-level particles, then the degrees of freedom of the original particle must be infinite, violating the maximal limit of entropy density. The holographic principle thus implies that the subdivisions must stop at some level, and that the fundamental particle is a bit (1 or 0) of information."

(no subject)

Date: 2010-02-09 05:22 pm (UTC)
From: [identity profile] yoginka.livejournal.com
"Глаз":
http://upload.wikimedia.org/wikipedia/commons/thumb/c/cd/Black_Hole_Milkyway.jpg/750px-Black_Hole_Milkyway.jpg

(no subject)

Date: 2010-02-10 12:01 am (UTC)
From: [identity profile] yoginka.livejournal.com
http://en.wikipedia.org/wiki/Information_entropy
Наконец-то все это увязалось в голове.

(no subject)

Date: 2010-02-10 12:24 am (UTC)
From: [identity profile] yoginka.livejournal.com
Энтропия <-> информация
Энтропия в теории информации (Шеннона) эквивалентна энтропии в термодинамике
(http://en.wikipedia.org/wiki/Holographic_principle):
Energy, matter, and information equivalence
Shannon's efforts to find a way to quantify the information contained in, for example, an e-mail message, led him unexpectedly to a formula with the same form as Boltzmann's. Bekenstein summarizes that "Thermodynamic entropy and Shannon entropy are conceptually equivalent: the number of arrangements that are counted by Boltzmann entropy reflects the amount of Shannon information one would need to implement any particular arrangement..." of matter and energy. The only salient difference between the thermodynamic entropy of physics and the Shannon's entropy of information is in the units of measure; the former is expressed in units of energy divided by temperature, the latter in essentially dimensionless "bits" of information, and so the difference is merely a matter of convention.

The holographic principle states that the entropy of ordinary mass (not just black holes) is also proportional to surface area and not volume; that volume itself is illusory and the universe is really a hologram which is isomorphic to the information "inscribed" on the surface of its boundary.

I fully agree with your thoughts

Date: 2011-03-08 05:11 am (UTC)
From: [identity profile] xaxoraqaho.livejournal.com
I'm really loving the theme/design of your website. Do you ever run into any web browser compatibility problems? A few of my blog readers have complained about my site not working correctly in Explorer but looks great in Chrome. Do you have any advice to help fix this issue?

Re: I fully agree with your thoughts

Date: 2011-03-08 02:56 pm (UTC)
From: [identity profile] yoginka.livejournal.com
Thanks. I'm using a standard Livejournal theme called "Smooth Sailing". I did not do anything on my own. I'm not a web designer, by the way.

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Date: 2011-08-07 11:01 am (UTC)
From: (Anonymous)
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(no subject)

Date: 2012-02-10 07:35 am (UTC)
From: [identity profile] fureyasa.livejournal.com
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(no subject)

Date: 2012-07-22 12:53 am (UTC)
From: [identity profile] lattimeriz.livejournal.com

http://www.youtube.com/watch?v=aMzgVshG6CI

(no subject)

Date: 2012-07-23 07:31 pm (UTC)
From: [identity profile] pymqeral.livejournal.com

http://www.youtube.com/watch?v=aMzgVshG6CI
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