Classroom Activity for the NOVA program Newton's Dark Secrets: In Secret Symbols, students read and interpret a passage from a famous alchemical text titled The Twelve Keys of Basil Valentine.

In this activity, you will use a glossary of alchemical symbols to interpret a passage from a famous alchemical text called The Twelve Keys of Basil Valentine. Procedure.

Antimony has enjoyed wide use throughout history, and not just in alchemical experiments. Egyptian women used one form of antimony, stibium, as eyeliner (hence the symbol for antimony, Sb, even ...

As a new exhibition looks at the concept of the loop, Joobin Bekhrad discovers how one symbol had different meanings in ancient Egypt, Hindu mythology and Renaissance alchemy.