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Re:Empty bottles quickly with a whirlpool trick (2012) [video] by shabble on Sunday September 09, 2018 @03:59PM (#17947464)
I remembered seeing something along these lines a while ago, didn't realise it was as far back as 2012 though: https://www.reddit.com/r/askscience/comments/sv6kw/which_is_...

I guess it's something that many people rediscover on a semi-regular basis.

Re:Empty bottles quickly with a whirlpool trick (2012) [video] by alexfoo on Sunday September 09, 2018 @04:38PM (#17947661)
I remember seeing the trick on Tomorrow's World (a UK science TV programme) back in the 90s. Can't find a link to the particular episode though.
Re:Empty bottles quickly with a whirlpool trick (2012) [video] by lowlevel on Monday September 10, 2018 @12:41AM (#17949431)
I was doing this in the mid eighties... think a teacher showed me it but can't remember... didn't have tv.
Re:Empty bottles quickly with a whirlpool trick (2012) [video] by schoen on Monday September 10, 2018 @12:50AM (#17949457)
I'm pretty sure I saw it featured in an article in Highlights for Children during the 80s.

https://en.wikipedia.org/wiki/Highlights_for_Children

Re:Empty bottles quickly with a whirlpool trick (2012) [video] by AluminiumPoint on Monday September 10, 2018 @03:00AM (#17949931)
I learned it in australia many years ago from these guys: https://www.youtube.com/watch?v=DYBw7k_8EbE
Re:Empty bottles quickly with a whirlpool trick (2012) [video] by schoen on Monday September 10, 2018 @11:35AM (#17952535)
Do Australians commonly say "elephant" to count seconds as the presenters do? In the U.S. it's usually "one-thousand" or "Mississippi". (I guess I can imagine that Australians wouldn't say "Mississippi"!)
Re:Empty bottles quickly with a whirlpool trick (2012) [video] by yesenadam on Tuesday September 11, 2018 @01:27AM (#17957378)
I've never heard of "elephant", no. (Sydney here)
Re:Empty bottles quickly with a whirlpool trick (2012) [video] by JoeAltmaier on Monday September 10, 2018 @11:52AM (#17952643)
or 'chimpanzee'!