I made some red cabbage juice (which is really deep purple) for our upcoming Harry Potter party. Red cabbage has a chemical (anthocyanin) which, when added to a base turns blue, and when added to an acid turns pink. It's pretty neat!
But the inside of the cabbage was also pretty neat. I used to doodle like this all over my notebooks in school, little nested squiggles of graphite in all the margins.
That is really neat! Also, I definitely thought that was a person in the lower center, under some kind of liquid - looks like knees and ankles and even an arm sticking out!