Photo date: February 28, 2020. Photographer: Mark Mahin.
I took the photos below while photographing only ordinary drops of pure, clean water falling in front of a black featureless background. On this day I got an astonishing motif uniformity. Almost all of 5000+ photos I took showed half-rings at the top of orbs. The total number of such half-rings that I photographed was in excess of 20,000. Below are some examples.