Blowing bubbles (underwater vortex edition)
A man on Japanese telly blowing bubble-rings under water! More YouTube-ness. This looks unreal at first, but stick with it, and turn the sound off (unless you are Cis). It’s the demo-ing of the vortex motion, and the merging of two rings that do it for me.
Alan in FT /Proven By Science • 1,831 views
cool innit? when you learn to dive if you have an instructor with a sense of fun/humour they’ll usually teach you how to do it.