Frasi di Brian Greene

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Brian Greene

Data di nascita: 9. Febbraio 1963
Altri nomi:ಬ್ರಯನ್ ಗ್ರೀನ್, برایان قرین, Brajan Grin

Pubblicità

Brian Greene è un fisico statunitense, tra i più importanti studiosi della teoria delle stringhe.

Dal 1996 è professore alla Columbia University. È celebre per le ricerche sulla simmetria speculare ed ha teorizzato la transizione quantistica detta flop-transition, una forma di cambiamento di topologia, dimostrando che la topologia delle stringhe può subire una trasformazione attraverso una transizione conica.

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Frasi Brian Greene

„All species of particles are unified in superstring theory since each arises from a different vibrational pattern executed by the same underlying entity.“

—  Brian Greene
Context: Superstring theory starts off by proposing a new answer to an old question: what are the smallest, indivisible constituents of matter? For many decades, the conventional answer has been that matter is composed of particles... that can be modeled as dots that are indivisible and that have no size and no internal structure. Conventional theory claims, and experiments confirm, that these particles combine in various ways to produce protons, neutrons, and a wide variety of atoms and molecules... Superstring theory tells a different story.... it does claim that these particles are not dots. Instead... every particle is composed of a tiny filament of energy, some hundred billion billion times smaller than a single atomic nucleus, which is shaped like a string. And just as a violin string can vibrate in different patterns, each of which produces a different musical tone, the filaments of superstring theory can also vibrate in different patterns. But these vibrations... produce different particle properties.... All species of particles are unified in superstring theory since each arises from a different vibrational pattern executed by the same underlying entity. The Fabric of the Cosmos : Space, Time, and the Texture of Reality (2004), p. 17

Pubblicità

„Physicists are more like avant-garde composers, willing to bend traditional rules and brush the edge of acceptability in the search for solutions.“

—  Brian Greene
Context: Physicists are more like avant-garde composers, willing to bend traditional rules and brush the edge of acceptability in the search for solutions. Mathematicians are more like classical composers, typically working within a much tighter framework, reluctant to go to the next step until all previous ones have been established with due rigor. Each approach has its advantages as well as drawbacks; each provides a unique outlet for creative discovery. Like modern and classical music, it’s not that one approach is right and the other wrong – the methods one chooses to use are largely a matter of taste and training. The Elegant Universe : Superstrings, Hidden Dimensions, and the Quest for the Ultimate Theory (1999), p. 271

„Like modern and classical music, it’s not that one approach is right and the other wrong – the methods one chooses to use are largely a matter of taste and training.“

—  Brian Greene
Context: Physicists are more like avant-garde composers, willing to bend traditional rules and brush the edge of acceptability in the search for solutions. Mathematicians are more like classical composers, typically working within a much tighter framework, reluctant to go to the next step until all previous ones have been established with due rigor. Each approach has its advantages as well as drawbacks; each provides a unique outlet for creative discovery. Like modern and classical music, it’s not that one approach is right and the other wrong – the methods one chooses to use are largely a matter of taste and training. The Elegant Universe : Superstrings, Hidden Dimensions, and the Quest for the Ultimate Theory (1999), p. 271

„Superstring theory starts off by proposing a new answer to an old question: what are the smallest, indivisible constituents of matter?“

—  Brian Greene
Context: Superstring theory starts off by proposing a new answer to an old question: what are the smallest, indivisible constituents of matter? For many decades, the conventional answer has been that matter is composed of particles... that can be modeled as dots that are indivisible and that have no size and no internal structure. Conventional theory claims, and experiments confirm, that these particles combine in various ways to produce protons, neutrons, and a wide variety of atoms and molecules... Superstring theory tells a different story.... it does claim that these particles are not dots. Instead... every particle is composed of a tiny filament of energy, some hundred billion billion times smaller than a single atomic nucleus, which is shaped like a string. And just as a violin string can vibrate in different patterns, each of which produces a different musical tone, the filaments of superstring theory can also vibrate in different patterns. But these vibrations... produce different particle properties.... All species of particles are unified in superstring theory since each arises from a different vibrational pattern executed by the same underlying entity. The Fabric of the Cosmos : Space, Time, and the Texture of Reality (2004), p. 17

„Some people think that the big bang is an explanation of how the universe began, its not. The big bang is a theory of how the universe evolved from a split second after whatever brought it into existence.“

—  Brian Greene
Context: Well, a big question is how did the universe begin. And we, cannot answer that question. Some people think that the big bang is an explanation of how the universe began, its not. The big bang is a theory of how the universe evolved from a split second after whatever brought it into existence. And the reason why we’ve been unable to look right back at time zero, to figure out how it really began; is that conflict between Einstein’s ideas of gravity and the laws of quantum physics. So, string theory may be able to — it hasn’t yet; we’re working on it today — feverishly. It may be able to answer the question, how did the universe begin. And I don’t know how it’ll affect your everyday life, but to me, if we really had a sense of how the universe really began, I think that would, really, alert us to our place in the cosmos in a deep way. In response to David Letterman's question, "What do we now know [about the universe] we didn’t know before?" on The Late Show (23 March 2005)

Pubblicità

„The boldness of asking deep questions may require unforeseen flexibility if we are to accept the answers.“

—  Brian Greene, The Elegant Universe: Superstrings, Hidden Dimensions, and the Quest for the Ultimate Theory

„Understanding requires insight. Insight must be anchored.“

—  Brian Greene, The Fabric of the Cosmos: Space, Time, and the Texture of Reality

Pubblicità

„... things are the way they are in our universe because if they weren't, we wouldn't be here to notice.“

—  Brian Greene, The Elegant Universe: Superstrings, Hidden Dimensions, and the Quest for the Ultimate Theory

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