Martin J. Rees · 208 pages
Rating: (3.6K votes)
“The sun has adjusted its structure so that nuclear power is generated in the core, and diffuses outward, at just the rate needed to balance the heat lost from the surface-heat that is the basis for life on Earth.”
― Martin J. Rees, quote from Just Six Numbers: The Deep Forces That Shape the Universe
“Our universe, extending immensely far beyond our present horizon, may itself be just one member of a possibly infinite ensemble. This ‘multiverse’ concept, though speculative, is a natural extension of current cosmological theories, which gain credence because they account for things that we do observe. The physical laws and geometry could be different in other universes, and this offers a new perspective on the seemingly special values that the six numbers take in ours.”
― Martin J. Rees, quote from Just Six Numbers: The Deep Forces That Shape the Universe
“[The fine structure constant] ... defines how firmly atomic nuclei bind together and how all the atoms on Earth were made. Its value controls the power from the Sun and, more sensitively, how stars transmute hydrogen into all the atoms of the periodic table.”
― Martin J. Rees, quote from Just Six Numbers: The Deep Forces That Shape the Universe
“A measure of the strength of a body's gravity is the speed with which a projectile must be fired to escape its grasp. It takes 11.2 kilometers per second to escape from the Earth. This speed is tiny compared with that of light, 300,000 kilometers per second, but it challenges rocket engineers constrained to use chemical fuel, which converts only a billionth of its so-called mass 'rest-mass energy' (Einstein's mc^2) into effective power. The escape velocity from the sun's surface is 600 kilometers per second-still only one fifth of one percent of the speed of light.”
― Martin J. Rees, quote from Just Six Numbers: The Deep Forces That Shape the Universe
“More energy is needed to rise a millimetre above a neutron star's surface than to break completely free of Earth's gravity. A pen dropped from a height of one metre would impact with the energy of a ton of TNT (although the intense gravity on a neutron star's surface would actually, of course, squash any such objects instantly). A projectile would need to attain half the speed of light to escape its gravity; conversely, anything that fell freely onto a neutron star from a great height would impact at more than half the speed of light.”
― Martin J. Rees, quote from Just Six Numbers: The Deep Forces That Shape the Universe
“The Sun contains about a thousand times more mass than Jupiter. If it were cold, gravity would squeeze it a million times denser than an ordinary solid: it would be a 'white dwarf' about the size of the Earth but 330,000 times more massive. But the Sun's core actually has a temperature of fifteen million degrees-thousands of time hotter than its glowing surface, and the pressure of this immensely hot gas 'puffs up' the Sun and holds it in equilibrium.”
― Martin J. Rees, quote from Just Six Numbers: The Deep Forces That Shape the Universe
Martin J. Rees
Born place: in York, The United Kingdom
Born date June 23, 1942
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“It was becoming a habit-this concentration on things behind him. Almost as though there were no future to be had. *Milkman*”
― Toni Morrison, quote from Song of Solomon
“Britta had a shrewd smile. "I keep thinking about a tale my nurse used to read to me about a bird whose wings are pinned to the ground. Have you heard it? In the end, when he finally frees himself, he flies so high he becomes a star. My nurse said the story was about how we all have something that keeps us down. So here's what I'm wondering—if Miri's wings are free, what will she do now?" Esa grinned. "Fly away, Miri bird, fly away!" Miri flapped her arms and cawed. "What are you doing?" said Bena, annoyed. The girls laughed. Where”
― Shannon Hale, quote from Princess Academy
“Passionate—that means to live for the sake of living. But one knows that you all live for sake of experience. Passion, that is self-forgetfulness. But what you all want is self-enrichment.”
― Thomas Mann, quote from The Magic Mountain
“Myth basically serves four functions. The first is the mystical function,... realizing what a wonder the universe is, and what a wonder you are, and experiencing awe before this mystery....The second is a cosmological dimension, the dimension with which science is concerned – showing you what shape the universe is, but showing it in such a way that the mystery again comes through.... The third function is the sociological one – supporting and validating a certain social order.... It is the sociological function of myth that has taken over in our world – and it is out of date.... But there is a fourth function of myth, and this is the one that I think everyone must try today to relate to – and that is the pedagogical function, of how to live a human lifetime under any circumstances.”
― Joseph Campbell, quote from The Power of Myth
“They walked back into the world together, wearing the gift that had been given them: just life. Pity was not love, Barbie reflected...but if you were a child, giving clothes to someone who was naked had to be a step in the right direction.”
― Stephen King, quote from Under the Dome
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