Heavy Water

Styx

The Styx (Ancient Greek: Στύξ, also meaning "hate" and "detestation") (adjectival form: Stygian, /ˈstɪdʒiən/) is a river in Greek mythology that formed the boundary between Earth and the Underworld (often called Hades which is also the name of this domain's ruler). The rivers Styx, Phlegethon, Acheron, and Cocytus all converge at the center of the underworld on a great marsh, which is also sometimes called the Styx. The important rivers of the underworld are Lethe, Eridanos, and Alpheus. more »