Photo date: January 14, 2017. Photographer: Mark Mahin.
I took the photo below while photographing nothing but ordinary
drops of pure, clean water falling against a dark featureless
background. We see an effect I used to get quite frequently, but which I don't get that often these days: what I call the orb centrifuge effect, in which orbs seem to be spinning around the outer edges of a water drop, like test tubes in a centrifuge.