The Alchemists:
The common perception of alchemists is that they were pseudo-scientists, crackpots and charlatans, who attempted to turn lead into gold, believed that the universe was composed of the four elements of earth, air, fire, and water, and spent most of their time concocting miraculous remedies, poisons, and magic potions.
Although some alchemists were indeed crackpots and charlatans, most were well-meaning and intelligent scholars. These people in many ways served as innovators, and attempted to explore and investigate the nature of chemical substances and processes. They had to rely on experimentation, traditional know-how, rules of thumb — and speculative thought in their attempts to uncover the mysteries of the physical universe.
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