Manny’s Reviews > L'Invention du Big Bang > Status Update

Manny
Manny is on page 45 of 267
I didn't know that Hilbert submitted his own paper about General Relativity the same week that Einstein submitted his! And Luminet says the Hilbert one is better...
May 06, 2012 08:47AM
L'Invention du Big Bang

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Manny
Manny is on page 125 of 267
Luminet speculates that his contemporaries didn't take Lemaître that seriously because he wrote too well. You know, it sounded like popular science, not real science...
May 08, 2012 07:09AM
L'Invention du Big Bang


Manny
Manny is on page 111 of 267
In 1912, Vesto Slipher presents data on radial velocities of 42 galaxies, and shows that 36 of them are receding. He gets a standing ovation. Astonishing in retrospect that the idea of an expanding universe was then so hard to sell to the science community!
May 07, 2012 02:09PM
L'Invention du Big Bang


Manny
Manny is on page 95 of 267
In 1920, most astronomers believed that M 31, now generally known as the Andromeda Galaxy, was a star system in the process of formation. It was of course hard to see how far away it was.
May 07, 2012 11:59AM
L'Invention du Big Bang


Manny
Manny is on page 65 of 267
A St. Petersburg cemetary, 1988. The old grave-digger asks why the visitor is so agitated. "I'm looking for a grave, but all your prewar records are missing!" "Name?" "Friedmann." "Is that the Friedmann who found the non-static cosmological solution to Einstein's equations?" "Uh, yes." "Follow me." Could only be Russia...
May 07, 2012 03:41AM
L'Invention du Big Bang


Manny
Manny is on page 15 of 267
He considers that the Big Bang theory is essentially the product of three people: Friedmann, Lemaître and Gamow. The most important of these is Lemaître.
May 06, 2012 03:19AM
L'Invention du Big Bang


Comments <span class="smallText"> (showing 1-5 of 5) </span> <span class="smallText">(5 new)</span>

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message 1: by Robert (new)

Robert I had never heard of anybody even thinking along the lines of GR prior to Einstein's publication!


Manny Apparently Einstein discussed the math with Hilbert, who had some excellent suggestions, and they ended up each writing a paper. Luminet says Hilbert's paper included some interesting analysis from Emmy Noether based on Noether's Theorem, which wasn't generally known at the time.


message 3: by Robert (new)

Robert Noether's Theorem isn't widely enough known now, if you ask me! And it's often mentioned without credit to Noether, which is also annoying.

But that's interesting - I was under the impression Einstein was working in an area no-one else considered until he did. That still seems to be true. Hilbert didn't get there independently in the same way Lorentz was on the track of Special Relativity.


message 4: by Manny (last edited May 06, 2012 01:12PM) (new) - rated it 4 stars

Manny Luminet says Poincaré also more or less discovered Special Relativity independently. But he says Einstein's original idea with General Relativity was entirely his own, even if he got a lot of help with the mathematical formulation - he goes into considerable detail there.

Agree about Noether's Theorem. No doubt just a coincidence that it was discovered by a woman...


message 5: by Robert (new)

Robert Manny wrote: "Luminet says Poincaré also more or less discovered Special Relativity independently. But he says Einstein's original idea with General Relativity was entirely his own, even if he got a lot of help ..."

Yep, pure coincidence...
Everyone was on the track of Special Relativity, it seems.
Of course spacetime was not Einstein's idea but it is a necessary ingredient of GR. Nobody works in a complete vacuum.


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