FEATURED UNIT: Flash Evaporator Redux: The wireless mobility of the original Flash Evaporator is combined here with the Pneuma design, giving freedom of use with the efficiency and long, long life of the amazing Pneuma.
Flash Evaporator
Brief History
Tobacco Master
------------------
Recap of Thomas Young's Experiment of 1803, with a laser. And an earlier attempt.
Question about a feature of water flow.
Iron ring, made with iron from Maryland clay.
