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Frasi di Sheldon Lee Glashow

Sheldon Lee Glashow è un fisico statunitense.

✵ 5. Dicembre 1932
Sheldon Lee Glashow photo
Sheldon Lee Glashow: 5 citazioni0 Mi piace

Sheldon Lee Glashow: Frasi in inglese

“All kinds of questions remain. Many have to do with cosmology. How did the universe originate? How did the galaxies become distributed in space like the suds in the kitchen sink, as one of my colleagues has described it? Why is the cosmological constant apparently very tiny but non-zero and has a peculiar value that leads the universe to expand more rapidly?”

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Sheldon L. Glashow

The Elegant Universe, NOVA Interview (2003)

“… Why is the muon, some dumb particle, 200 times heavier than the electron? Why is the proton about 2,000 times heavier than the electron? Why is the electric charge of the electron what it is? Why are there six quarks in nature? Why not seven or eleven or five? There are many, many "why" questions. Also a number of 'how' questions. What is the mechanism that causes the weak interactions to be weak and the electromagnetic interactions not weak?”

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Sheldon L. Glashow

The Elegant Universe, NOVA Interview (2003)

“Strong, weak and electromagnetic interaction are evidently part of a grand unified theory. These temperatures are today quite inaccessible. They were achieved only in the earliest moments of the Big Bang. Since then, the universe has congealed, losing its symmetry.”

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Sheldon L. Glashow

Origine: The Charm of Physics (1991), p. 244

“… If a distant galaxy is moving relative to us, its entire spectrum is Doppler-shifted in frequency. Its spectral lines are displaced relative to those of stationary light sources. Thanks to this effect, we know that distant galaxies recede from the solar system at speeds proportional to their distances from us. That's the effect that told us of the expanding universe, and of its birth, long ago, in the Big Bang.”

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Sheldon L. Glashow

Origine: From Alchemy to Quarks (1994), p. 385

“The color gauge theory postulates the existence of eight massless particles, sometimes called gluons, that are the carriers of the strong force just as the photon is the carrier of the electromagnetic force.”

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Sheldon L. Glashow

Origine: The Charm of Physics (1991), p. 151

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