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Did you know that there is more than one type of infinity?
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- string theory started out with 26 dimensions, but seems to have got it down to 11, lately - of course you can't see them until you get 'really' close :D |
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The link to a dead end / point of no return was what I was thinking of. |
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You're probably all aware that change of distance with respect to time is called velocity and that change of velocity with respect to time is called acceleration. But did you know that change of acceleration with respect to time is called jerk? (Actually, there's one or two alternative names floating around, but I rather like that one.)
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And did you know that there is only one English king who has been crowned king of France?
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Please explain.... I was under the impression it had the meaning "no end" whatever it applied to. |
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Ooh - I remember this from a very old maths book I picked up in a second-hand bookshop in Cambridge - it seems that infinity * any real number = infinity, infinity+ any real number = infinity, infinity + infinity = infinity, but infinity ^ infinity is a bigger infinity than the one you started with. At which point my brain explodes.
Trivial fact - Tchaikovsky and Oscar Wilde were both gay men who married and even had children, in Wilde's case. |
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Then to the right of each integer, write down the number you get when the original is doubled. This list (of all even numbers) is also infinite, and the same length of the first. Now to the right rewrite the second list, but inserting all odd numbers. This list is also infinite, but twice as long as the other two, even though it contains the same numbers as the first. :confused: |
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