A directory of useful objects found on the web for teaching Maths.
https://www.youtube.com/watch?v=uENITui5_jU
Interesting, Stimulus, Video, YouTube
Water is passed by a speaker generating a 24 Hz tone.
The water forms a sine wave.
4 May 2015 Edit: 4 May 2015
User submitted, thanks to Meagan Rodda
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