Teoria Del Tutto Pdf
La teoria del tutto scarica libro (PDF.EPUB.TXT.FB2.MP3.DOC) Leggere eBook online La teoria del tutto • Data uscita: • Pagine:138 • Formato:brossura • Lingua:Italiano Scarica eBook Gratis:• • • • • Leggere online:• Scarica audiolibro Gratis:• In questo volume, il grande fisico Stephen Hawking delinea una breve storia dell’Universo “dal Big Bang ai buchi neri” (per citare il titolo italiano della sua opera piu famosa). Per farlo, presenta le principali teorie cosmologiche da Aristotele fino ad Einstein, passando da Tolomeo, Copernico, Galileo e Newton; quindi espone le conoscenze attuali sulle leggi fisiche alle quali obbedisce il nostro Universo; infine, avanza alcune ipotesi in direzione di quella “teoria del tutto” capace di unificare la meccanica quantistica, la gravita e le altre interazioni della fisica. Solo una “teoria del tutto”, infatti, ci consentirebbe di rispondere alla vera questione ultima: perche esiste l’Universo?
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• • • A theory of everything ( ToE), final theory, ultimate theory, or master theory is a hypothetical single, all-encompassing, coherent that fully explains and links together all physical aspects of the.: 6 Finding a ToE is one of the major. Over the past few centuries, two theoretical frameworks have been developed that, as a whole, most closely resemble a ToE. These two theories upon which all modern physics rests are (GR) and (QFT). GR is a theoretical framework that only focuses on for understanding the universe in regions of both large-scale and high-mass: stars, galaxies, clusters of galaxies, etc. On the other hand, QFT is a theoretical framework that only focuses on three non-gravitational forces for understanding the universe in regions of both small scale and low mass: sub-atomic particles, atoms, molecules, etc. QFT successfully implemented the and unified the interactions (so-called ) between the three non-gravitational forces:,, and force.: 122 Through years of research, physicists have experimentally confirmed with tremendous accuracy virtually every prediction made by these two theories when in their appropriate domains of applicability.
In accordance with their findings, scientists also learned that GR and QFT, as they are currently formulated, are mutually incompatible – they cannot both be right. Install Microsoft Powerpoint Presentation. Nissan Forklift Serial Number Decoder. Since the usual domains of applicability of GR and QFT are so different, most situations require that only one of the two theories be used.: 842–844 As it turns out, this incompatibility between GR and QFT is apparently only an issue in regions of extremely small-scale and high-mass, such as those that exist within a black hole or during the beginning stages of the universe (i.e., the moment immediately following the ). To resolve this conflict, a theoretical framework revealing a deeper underlying reality, unifying gravity with the other three interactions, must be discovered to harmoniously integrate the realms of GR and QFT into a seamless whole: a single theory that, in principle, is capable of describing all phenomena. In pursuit of this goal, has become an area of active research. Eventually a single explanatory framework, called ', emerged that intends to be the ultimate theory of the universe. String theory posits that at the (up to 10 −43 seconds after the Big Bang), the four fundamental forces were once a single fundamental force.
According to string theory, every particle in the universe, at its most microscopic level (), consists of varying combinations of vibrating strings (or strands) with preferred patterns of vibration. String theory further claims that it is through these specific oscillatory patterns of strings that a particle of unique mass and force charge is created (that is to say, the electron is a type of string that vibrates one way, while the up-quark is a type of string vibrating another way, and so forth).