* Medieval alchemists wanted to turn lead into gold. It was a fruitless endeavor because they used chemical reactions. Nowadays, we know why: Chemical reactions cannot change one element into another. Only nuclear processes, which involve intense energies not available until the 20th century, can accomplish this. [http://www.jupiterscientific.org/review/pseudoscience.html]
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* Medieval alchemists wanted to turn lead into gold. It was a fruitless endeavor because they used chemical reactions. Nowadays, we know why: [[Chemical reaction]]s cannot change one [[element]] into another. Only [[nucleus|nuclear]] processes, which involve intense energies not available until the 20th century, can accomplish this. [http://www.jupiterscientific.org/review/pseudoscience.html]