This fluid friday finds me in London, getting acclimatised in time for some research and writing. I’m going to share a video of toroidal vortices with you today. These amazing vortices form in a blown smoke ring, are ejected from the airhole of aquatic mammals, allow helicopters to fly, and cause certain forms of heart attack when they form in the left ventricle. They’re quite hypnotic:
I am taking a hiatus from posting for a while longer until I am more settled, but I wish you a felicitous fluid friday!