Frases de Philip James Edwin Peebles (5 citas)

Philip James Edwin Peebles: 5 citas0 Me gusta

Philip James Edwin Peebles: Frases en inglés

“A solid stores energy in the vibrations of the atoms about their equilibrium positions. In the simplest approximation, which Einstein considered, each atom vibrates with the same frequency, ν, in each of three dimensions, so a solid containing N atoms can be thought of as 3N one-dimensional simple harmonic oscillators.”

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Jim Peebles

[Quantum Mechanics, 1992, Princeton University Press, 11, https://books.google.com/books?id=hTaw4Ht4Vi8C&pg=PA11]

“The n-point correlation functions have proved useful not only as descriptive statistics but also as dynamic variables in the Newtonian theory of the evolution of clustering. ... The functions are generalized to mass correlation functions in position and momentum, and the BBGKY hierarchy of equations for their evolution is derived. This yields a new way to analyze the evolution of mass clustering in an expanding universe.”

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Jim Peebles

[The Large-scale Structure of the Universe, 1980, Princeton Universe Press, xii, https://books.google.com/books?id=O_BPaHFtX1YC&pg=PR12]

“I don't think there is a final theory of anything. It's theories all the way down.”

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Jim Peebles

[Princeton news conference for James Peeble, winner of the 2019 Nobel Prize in Physics, October 8, 2019, https://www.youtube.com/watch?v=JiPZrRcdgfU] (quote at 25:26 of 38:15)

“I have been working in cosmology for 55 years ... I'm the last man standing, so to speak, from those early days.”

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Jim Peebles

as quoted by Kenneth Chang and Megan Specia in: [8 October 2019, Nobel Prize in Physics Awarded for Studies of Earth's Place in the Universe, NY Times, https://www.nytimes.com/2019/10/08/science/nobel-physics.html]

“Another somewhat confusing usage is the name "the big bang" for the standard model. It is not appropriate, because it connotes a spatially isolated event, an explosion, that marked the start of everything. ... But the name has a very evident appeal and I expect that people will continue to use it.”

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Jim Peebles

[Principles of Physical Cosmology, Princeton University Press, 1993, xvii, https://books.google.com/books/about/Principles_of_Physical_Cosmology.html?id=AmlEt6TJ6jAC&pg=PR17]