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My philosophy teacher told us this, that Albert Einstein in his late years was outside one day, and was suddenly struck by inspiration for something important (perhaps the unifying theory of physics, no less). Having no paper and no pen, he looked how he could write down this marvellous idea so as not to forget it. Nearby, there was a coal delivery truck, and so Einstein picked up a lump of coal and wrote his idea on the side of the truck. The truck driver refused to put up with him and drove off and the idea was lost forever.

Is that even remotely true?

closed as off-topic by Suma, pericles316, Larian LeQuella Nov 30 '16 at 1:39

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    Close enough for philosphy instruction! – GEdgar Mar 3 '14 at 23:02
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I've heard similar stories told about mathematicians writing a theorem on taxicabs during a cross town trip, and leaving the cab. Little doubt this kind of thing is a staple of the "absent minded professor" trope.

The anecdote I was thinking of is from Alfred Bester's "The Men Who Murdered Mohammed" in 1958

They were also real mad professors. Ampère, for example, was on his way to an important meeting of scientists in Paris. In his taxi he got a brilliant idea (of an electrical nature, I assume) and whipped out a pencil and jotted the equation on the wall of the hansom cab. Roughly, it was: dH = ipdl/r 2 in which p is the perpendicular distance from Ñ to the line of the element dl; or dH = i sin è dl/r 2 . This is sometimes known as Laplace’s Law, although he wasn’t at the meeting.

Anyway, the cab arrived at the Académie. Ampère jumped out, paid the driver and rushed into the meeting to tell everybody about his idea. Then he realized he didn’t have the note on him, remembered where he’d left it, and had to chase through the streets of Paris after the taxi to recover his runaway equation. Sometimes I imagine that’s how Fermat lost his famous “Last Theorem,” although Fermat wasn’t at the meeting either, having died some two hundred years earlier.

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    While you're right that it's part of the trope, that doesn't mean that this didn't originate with Einstein. Since this is Skeptics, we're looking for answers which cite reputable sources to either prove or disprove the question - ideally it'd be definitively (such as a contemporary source), but enough information to make it fairly certain (such as showing that it didn't start being told until 1980, for example) could be sufficient if that's all that's available. – Bobson Sep 5 '14 at 19:06
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    We don't have any evidence that someone wrote down the original story. – Oldcat Sep 5 '14 at 19:07
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    I almost want to up vote you for quoting the single best time-travel story in science fiction, but fiction doesn't make a reputable source here. – matt_black Sep 6 '14 at 12:44

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