William Herkewitz on Muck Rack

William Herkewitz

Science and Technology Writer — Freelance

Mostly hydrogen. Some oxygen. Dash of carbon. Part time writer and reviewer. German-American in Rwanda. πŸ‡ΊπŸ‡ΈπŸ‡©πŸ‡ͺπŸ‡·πŸ‡Ό