The colour-enhanced high-speed image illustrates a high velocity water jet breaking a stream of kerosene by inducing waves, which can cause oil ligament breakup and drop detachment. The mirrored images of these generated waves can have forms, which to the pattern-seeking human eye can transform into familiar yet unexpected figures.
Faces of turbulence

The colour-enhanced high-speed image illustrates a high velocity water jet breaking a stream of kerosene by inducing waves, which can cause oil ligament breakup and drop detachment. The mirrored images of these generated waves can have forms, which to the pattern-seeking human eye can transform into familiar yet unexpected figures.

https://fluids.ac.uk/files/02_Photo_180331.1522825607.png