This Is In The,

'more time on your hands than you know what to do with', department,

but I have to say quite fascinating, it is the science of  creating hurricane balls, take two round objects of roughly the same mass, glue them together using something like hot glue and spin them on a concave surface like a bathroom mirror, and then use a straw or a blower to blow air on one side of them, it is said that they can spin at up to speeds of 12,000 revolutions per minute!

the science of it, according to Make, was explained by the 19th century French mathematician Louis Poinsot, he was the first to demonstrate that any number of individual forces pushing or pulling on a rigid thing can be simplified into just a single linear force and a twisting force called a couple, so take all the force from blowing on it, combined with its already existing spinning momentum, and we get a little hurricane going incredibly fast in no direction at all, absolutely amazing! 

in a new video from PBS Digital Studios, homemade special effects guru Joey Shanks shows off the fascinating, simple joy of making and spinning hurricane balls, in the video he demonstrates the use of strobe and ultra violet lighting amongst other effects, all of this from having too much time on your hands!