I'm sorry about your Coccyx too, Miss Grant.

Reality:

The rings have 1px wide borders that oscillate out of phase with their interiors, and your eyes perceive the phase shifted borders as moving edges. It’s really neat, our optic nerves have specific hardware for edge detection and this gif fools it!

"Neep Gren 😊"

The Nebra Sky Disc

Found in Germany, the Nebra Sky Disc is the oldest known material depiction of cosmic phenomena in the world. It reveals the creativity and advanced astronomical knowledge of cultures without writing.

The distinctive rosette of seven stars represents the Pleiades. These stars play a key role in an ancient rule, known from a 2,700-year-old Babylonian text, that allowed the shorter lunar year to be kept in step with the solar year. A leap month should be added every third year if a crescent moon a few days old appears next to the Pleiades in the springtime sky.

The Nebra Sky Disc was made using gold from Cornwall and bronze from central Europe. It was remodelled as its meaning and use changed. Like Stonehenge’s alignment, the bands on either side marked the positions of the rising and setting sun over the course of the solar year.

Bonus sailor uniform again because it's my favourite: