When Ernest Rutherford and Frederick Soddy discovered that with radioactivity one atom can be transformed into another, Soddy recalled blurting out “Rutherford, this is transmutation: the thorium is disintegrating and transmuting itself into argon gas.” As “the words seemed to flash through” Soddy “as if from some outside force,” Rutherford replied, “For Mike’s sake, Soddy, don’t call it transmutation. They’ll have our heads off as alchemists.”

A doctoral student in economics at Harvard University in 2004 compared the rise and fall of temperatures to the likelihood of witch trials in Europe, discovering that they often formed an inverse relationship. The average temperature between roughly 1520 and 1770 was two degrees lower than previous centuries, leading to crop failure and economic instability. The majority of trials and executions for witchcraft occurred during the period, known as the “little ice age.”