Tag Archives: mass hysteria

A case of toxic blood

Shruthi Deivasigamani Philadelphia, Pennsylvania, United States   The Dancing Mania by Hendrick Hondius (1642). Credit:¬†Wellcome Collection.¬†CC BY On a blustery winter day, a molecule of water condenses around a particle of dust in the air. The structure grows in size as it falls closer to earth, and before it hits the ground outside, it has […]