Over the seventeenth century, a study of combustion was created by Jan Baptist van Helmont who discovered that burning charcoal unveiled a fuel sylvestris, or wild spirit.[32] This was subsequently incorporated into Phlogiston theory by Johann Joachim Becher in 1667; a concept that could dominate alchemical thinking for virtually two https://car-park-extract-systems24566.loginblogin.com/44364190/the-car-park-extract-systems-diaries