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If the universe had formed just a tiny bit differently–if gravity were fractionally stronger or weaker, if the expansion had proceeded just a little more slowly or swiftly–then there might never have been stable elements to make you and me and the ground we stand on.
In either case, with the slightest tweaking of the numbers the universe as we know and need it would not be here. It is enough to know that in a single cracking instant we were endowed with a universe that was vast–at least a hundred billion light-years across, according to the theory, but possibly any size up to infinite–and perfectly arrayed for the creation of stars, galaxies, and other complex systems.
So protons are exceedingly microscopic, to say the very least. Tryon of Columbia University once put it: Even the notion of the Big Bang is quite a recent one.
We learn what the material world is like from the smallest quark to the largest galaxy and at all the levels in between. One notion is that perhaps the singularity was the relic of an earlier, collapsed universe–that we’re just one hietoire an eternal cycle of expanding and collapsing universes, like the bladder on an oxygen machine.
Had it been weaker, however, nothing would have coalesced.
– A Short History of Nearly Everything – Bill Bryson – Livres
All I know is that for one twenty-four-hour period in the history of Earth, it appears I had no being. There is of course a great deal we don’t know, and much of what we think we know we haven’t known, or thought we’ve known, for long. There is, it must be said, a certain metaphysical comfort in knowing that you can cease to have material form and it doesn’t hurt at all, and, to be fair, they do give you the day back in return journey when you cross the dateline in opposite direction and thereby manage somehow to arrive in Los Angeles before you left Sydney, which in its way, of course, is an even neater trick.
Inflation theory explains the ripples and eddies that make our universe possible.
There is no space for it to occupy, no place for it to be. Would recommand it for any science enthousiasts or as kickstater to make you love science. It seems impossible that you could get something from nothing, but the fact that once there was nothing and now there is a bdyson is evident proof that you can. We all have gaps in our grasp of the history of the World, Science, Nature, the Universe and wotnot.
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Thus is 0. In three minutes, 98 percent of all the matter there is or will ever be has been produced. From nothing at all, suddenly there were swarms of photons, protons, electrons, neutrons, and much else–between and of each, according to the standard Big Bang theory. He makes an analogy with a very large clothing store: In a more recent paper he had even suggested an instrument that might do the job: For me there was no 4 January.
It was a smallish shop pfesque I was the only customer.
Une histoire de tout, ou presque…
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. For a year the young astronomers touy everything they could think of to track down and eliminate the noise. We mustn’t swoon over every extraordinary number that comes before us, but it is perhaps worth latching on to one from time to time just to be reminded of their ungraspable and amazing breadth.
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Citations de Bill Bryson () – page 22 – Babelio
And the thing is, it would be a much better game for it. The Road to Little Dribbling.
Un livre remarquable, qui ne fait pas mentir son titre ambitieux. L’histoire des otut, les sciencesla science He didn’t say hello or make any acknowledgement, which seemed odd – very un-Australian – until I realized he was being discreet. In every instance one of two things happened: The noise that Penzias and Wilson were hearing was, of course, the noise that Gamow had postulated.
Always rare, it was said to have one of the loveliest songs of all birds. The Story of the English Language. Don’t try to swim against the current.