In the seventeenth century, a examine of combustion was produced by Jan Baptist van Helmont who identified that burning charcoal produced a gas sylvestris, or wild spirit.[32] This was subsequently incorporated into Phlogiston concept by Johann Joachim Becher in 1667; a concept that could dominate alchemical thinking for practically two https://carparkextractsystems47890.laowaiblog.com/35550341/a-secret-weapon-for-car-park-extract-systems