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Lost Technology

Greek Fire Roman Cement Flexible Glass (Roman) Terra Pietra (Bolivian)

From Alchemy to Chemistry

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    home | index | units | counting | geometry | algebra | trigonometry & functions | calculus analysis | sets & logic | number theory | recreational | misc | nomenclature & history | physics Final Answers © 2000-2019   GĂ©rard P. Michon , Ph.D. Basic Chemistry Willard Libby   came to Princeton with  a little jar of crystals of barium xenate . Freeman Dyson   (1923-) Measuring chemical stuff in  moles   (mol)  makes  stoichiometry   obvious. Modern distillation   ( alembic = still-head)  is due to  Mary the Jewess . The retort   was a prominent tool of alchemists and chemists for centuries. Production and distillation of alcohol .  Its origins and limitations. Black powder :  An ancient explosive, still used as a propellant ( gunpowder ). Predicting explosive reactions :  A useful but oversimplified rule of thumb. Thermite   generates temperatures hot enough to weld iron. Enthalpy of Formation :  The tabulated data wh