Having your temperature taken has become a regular feature of day-to-day life during the COVID-19 pandemic. Everywhere from doctor’s offices to bars, testing for high body temperatures is a precaution many public establishments now take when people enter the premises. Here’s the origin story of the tool that’s had us on edge since the crisis…

Melting Butter, Poisonous Mushrooms and the Strange History of the Invention of the Thermometer