Back in the pool…

I was back in the open-air university swimming pool yesterday. It was raining (inevitably), not that that really makes a difference. (I’m always amazed why the pool is so empty when its raining – as if it makes a difference to how damp you get).

With a nice rainstorm going overhead I got to see some unusual views of water droplet splashes – rather similar to the one I’ve pasted here from If you get your eyes close to water level, the view is pretty impressive, with little cylinders of water rising up a couple of centimetres from the surface for maybe a quarter of a second – just long enough to take it in before it vanishes.

Explaining just why a falling droplet makes such a tower when it hits the surface is something I won’t try to do – since the governing physics is non-linear it’s not a straightforward process.



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