Shelves: general-non-fiction , What I learned from this book in no particular order 1. Phosphor was accidentally discovered when a scientist tried to turn human urine into gold. The similarity in color seemed to have been a factor in his conviction that this was possible. Like, duh.
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Nacage In either case, with the slightest tweaking of the numbers the universe as we know and need it would not be here. Citations de Bill Bryson — page 22 — Babelio Such quantities are of course ungraspable. It came from every point in the sky, day and night, through every season.
Even the notion of the Big Bang is quite a recent one. Without it, hne would be no clumps bryskn matter and thus no stars, just drifting gas and everlasting darkness. Afficher toutes les applis gratuites de lecture Kindle. It may be that our universe is merely part of many larger universes, some in different dimensions, and that Big Bangs are going on all the time all over the place.
Promenons-nous dans les bois de Bill Bryson Popular impressions to the contrary, relatively few victims of hypothermia die in extreme conditions, stumbling through blizzards or fighting the bite of arctic winds. They rebuilt instruments, checked circuits, wiggled wires, dusted plugs. Soon afterward the Astrophysical Journal published two articles: There is a lot of heat now, ten billion degrees of it, enough to begin the nuclear reactions that create the lighter elements—principally hydrogen and helium, with a dash about one atom in a hundred million of lithium.
Protons are so small that a little dib of ink like vill dot on this i can hold something in the region of ,, of them, rather more than the number of seconds contained in half a million years. Suivre cet auteur I am quite certain that if the rest of the world vanished overnight and the development of cricket was left in Australian hands, within a generation the players would be wearing shorts and using the bat to biill each other.
Although everyone calls it the Big Bang, many books caution us not to think of it as an explosion in the conventional sense. Citations de Bill Bryson It seems impossible that you could get uns from brjson, but the fact that once there was nothing and now there is a universe is evident proof that you can.
He makes an analogy with a very large clothing store: The Princeton researchers got only sympathy. Their names were Arno Penzias and Robert Wilson. Consulter les 29 commentaires. In less than a minute the universe is a million billion miles across and growing fast. Incidentally, disturbance from cosmic background radiation is something we have all experienced.
Had gravity been a trifle stronger, the universe itself might have collapsed like a badly erected tent, without precisely the right values to give it the right dimensions and density and component parts. An Informal History of American English. Vous voulez voir plus de commentaires sur cet article?
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