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The Big Bang on WhatDoYaKnow.com
This article is condensed from a book by Mario Livio.
As for Livio himself, he admits to a few scientific errors of his own. “But there was nothing brilliant about my mistakes,” he says. “I’ve made small errors that simply convinced me to try things differently.” While he’s too modest to say so, this book is not one of them.
The Big Bang Theory
A fellow named Mario Livio wrote a book about really smart and famous scientists that screwed up. Got it wrong. Flunked the big test.
Mistakes are a natural part of science...
Each of these world-class scientists made whopping mistakes — and as the astrophysicist Mario Livio shows in his deeply researched and compellingly written new book Brilliant Blunders (Simon & Schuster), they weren’t alone. Darwin and Einstein, too, made significant errors. “Most people imagine that these great luminaries couldn’t possibly make mistakes,” says Livio, who holds a position at the Space Telescope Science Institute.
But they did. Some of the bloopers were perfectly understandable based on what was known at the time. Darwin, for example, like many of his contemporaries, assumed that the characteristics of two parents were “blended” in their offspring, “as in the mixing of paints." Fair enough, given that the existence of genes wasn’t known at the time—except that after a few generations, the contribution of a great-grandparent or a great-great would have been so diluted that none of that ancestor’s genetic material would have been detectable in the descendants. Yet natural selection was supposed to work by having beneficial characteristics reinforced, not diluted. Oops.
Other mistakes were based on a certainty bordering on arrogance. Pauling had been so successful at explaining chemical bonds and deducing the structures of proteins that he evidently became overconfident: “His model of DNA,” says Livio, “had the wrong number of strands, and it was built completely inside out from the correct model. It was also unstable, and it wasn’t even an acid”—which biochemists had already established it must be. “It took him 13 years to figure out proteins,” says Livio, “but just a month for DNA. Somehow, he became a victim of his own success.”
Fred Hoyle’s mistake wasn’t in creating the steady-state theory, which posited that new matter was constantly created to fill in the gaps as the expanding universe spread and diluted. “That was brilliant,” admits Livio, but only at first. The blunder was in holding onto that theory long after the rival Big Bang, which started with a single moment of cosmic creation, had built up overwhelming evidence in its favor.
And then there was Einstein: when he put together General Relativity, the equations told him the universe had to be expanding or contracting; it couldn’t simply be sitting there. Yet as far as anyone knew, it was. To fix things up, he added a “cosmological constant” to the equations of relativity — a sort of antigravity that kept things in perfect balance.
Einstein made a mistake?
It’s not clear that any great harm was done by any of these mistakes, and in fact, they often led to better science in the end. Pauling’s errors emboldened Francis Crick and James Watson to forge ahead with their own, ultimately successful search for the structure of DNA. Hoyle’s brilliant defense of the steady-state theory forced Big Bang defenders to make their case all the more carefully and persuasively. Darwin’s error might have originally held the development of evolution research back. Later in the century, however, when people began to appreciate the work Gregor Mendel had conducted with hereditary traits in pea plants, his and Darwin’s research could move ahead together, complementing and improving each other.
This graphic appears a couple of times on this site. It's a timeline that stretches 15 billion years. No, it's not to scale.
Read more: http://science.time.com/2013/05/17/sciences-brilliant-blunders-how-oops-moments-became-eurekas/#ixzz2Ve6uuDh3
The Big Bang theory is the prevailing scientific model (or PARADIGM) that describes the formation of our universe. According to the theory the universe is 13.7 billion years old (give or take .037 billion years.)
One more thing:
Is it possible the
current theory about the creation of the Cosmos is also wrong?
The night sky presents the viewer with a picture of a calm and unchanging Universe. So the 1929 discovery by Edwin Hubble that the Universe is in fact expanding at enormous speed was revolutionary. Hubble noted that galaxies outside our own Milky Way were all moving away from us, each at a speed proportional to its distance from us. He quickly realized what this meant that there must have been an instant in time (now known to be about 14 billion years ago) when the entire Universe was contained in a single point in space. The Universe must have been born in this single violent event which came to be known as the "Big Bang."