Recently, I had been watching this video about sonoluminescence and how certain shrimps (e.g. mantis shrimp) can snap their pincers so fast that a huge sound is made in the form of a bubble, which collapses on itself and a flash of light is seen from the centre of the bubble, although lasting only 0.01 seconds. I later found out that this flash of light is so far unexplained. What do you think the reason for this flash of light?
Image credit: BBC Wildlife