Three things strike us about this video:
1. How did they discover this trick?
2. Isn't it brilliant?
3. Doesn't the boy sitting there remind you of the painting 'Bathers at Asnières' by Seurat?
OK, so maybe the last one is just us. But we're pretty sure you'll wonder about the first two. Click play to find out why.
And if you like this sort of thing: here's the fastest way to drink a bottle of water...
(Via Tastefully Offensive)