Quotes About Universe

The idea that a well-defined now exists throughout the universe is an illusion, an illegitimate extrapolation of our own experience.

What does what we know or don't know have to do with the laws that govern the world?

If the present has no meaning, then what "exists" in the universe? Is not what "exists" precisely what is here "in the present"? The whole idea that the universe exists now in a certain configuration and changes together with the passage of time simply doesn't stack up anymore.

Michele has left this strange world a little before me. This means nothing. People like us, who believe in physics, know that the distinction made between past, present and future is nothing more than a persistent, stubborn illusion.

An idea was needed, a great idea, a grand vision, to grasp the hidden order of the world. Leucippus and Democritus came up with this idea. The idea of Democritus's system is extremely simple: the entire universe is made up of a boundless space in which innumerable atoms run. Space is without limits; has neither an above nor a below; is without a center or a boundary. Atoms have no qualities at all, apart from their shape. They

The present is a localized rather than a global phenomenon.

We see the sky turning around us every day, but we are the ones who are turning. Is the daily spectacle of a revolving universe "illusory"? No, it is real, but it doesn't involve the cosmos alone. It involves our relation with the sun and the stars. We understand it by asking ourselves how we move. Cosmic movement emerges from the relation between the cosmos and ourselves.

Newton nesnelerin uzayda hareket etti?ini, uzay?n da bo? bir kap, evren için büyük bir kutu oldu?unu hayal etmi?ti. Newton taraf?ndan icat edilen bu "uzay"?n, dünyan?n kutusunun neden yap?ld??? da belli de?ildi.

Kütle çekim alan? uzayda yay?lm?? de?ildi, çekim alan? uzay?n ta kendisiydi.

Uzay maddenin var olduÄŸu yerde eÄŸrilir.

Ama bükülen yaln?zca uzay de?ildir; zaman da bükülür. Einstein zaman?n yüksekteki bir konumda, dünyaya yak?n, daha alçak bir durumdan daha h?zl? akt???n? öngörür.

Einstein'?n denklemi uzay?n dura?an olamayaca??n?, geni?lemek zorunda oldu?unu gösterir. (...) Ayn? denklem geni?lemenin minicik ve çok s?cak genç bir evrenin patlamas?yla tetiklendi?ini de öngörür: Bu da Büyük Patlama'd?r.

Carlo Rovelli

But what we see and understand of the universe is not an infinity to drown in. It is a wide sea, but a finite one.

Evrenlerin patlad???, uzay?n ç?k??? olmayan delikler içine çöktü?ü, zaman?n bir gezegene inildikçe yava?lad???, y?ld?zlararas? uzay?n uçsuz bucaks?z enginli?inin deniz yüzeyi gibi dalgaland??? renkli ve ?a??rt?c? bir dünya...

We observe the universe from within it, interacting with a minuscule portion of the innumerable variables of the cosmos. What we see is a blurred image. This blurring suggests that the dynamic of the universe with which we interact is governed by entropy, which measures the amount of blurring. It measures something that relates to us more than to the cosmos.

Without this attraction, every celestial body would move in a straight line. So the universe, then, is a large space where bodies attract one another by means of forces; and there is a universal force, gravity: every body attracts every other body.

Black hole heat is directly connected to loop quantum gravity's fluctuations of the atoms of space.

A small system S does not distinguish the details of the rest of the universe because it interacts only with a few among the variables of the rest of the universe.

Quantum uncertainty across the horizon of the black hole generates fluctuations of the horizon geometry. But "fluctuations" imply "probability," and probability implies thermodynamics, and therefore temperature. Concealing from us a part of the universe, a black hole makes its quantum fluctuations detectable in the form of heat.

It isn't true, as is sometimes stated, that life generates structures that are particularly ordered, or that locally diminish entropy: it is simply a process that degrades and consumes the low entropy of food; it is a self-structured disordering, no more and no less than in the rest of the universe.

Later on, I will delve into the mystery of this blurring, to see how it is tied to the strange initial improbability of the universe. For now, I will end with the mind-boggling fact that entropy, as Boltzmann fully understood, is nothing other than the number of microscopic states that our blurred vision of the world fails to distinguish.

Time has lost another of its crucial components: the intrinsic difference between past and future. Boltzmann understood that there is nothing intrinsic about the flowing of time. That it is only the blurred reflection of a mysterious improbability of the universe at a point in the past. The source of Rilke's "eternal current" is nothing other than this.

Yukar?da o kadar büyük bir uzay var ki, çok s?radan bir galaksinin bu ücra kö?esinde özel bir ?eyler oldu?unu dü?ünmek çocukça olur.