The more you know…

Did you know that the yarmulke is the closest living relative of the headphone?

Fossil evidence has been found for 5 intermediate lifeforms (b-f) between the most recent common ancestor (a) and the modern headphone (g).*



* This figure is actually from Pruppacher & Klett, 2004. Microphysics of Clouds and Precipitation, Kluwer Academic Publishers. It shows how large raindrops can break up as they are subjected to drag forces while falling. Apparently in low-turbulence falls, drops can get up to about 4.5mm before this breakup mechanism kicks in.