History of air conditioning: invention, historical reactions, Arthur Miller column on the days before its invention, more.
Want access to someone’s home? All you need to do is take a picture of their key with your phone.
World’s largest (and grossest) aquatic insect discovered in China.
ICYMI, Friday’s links are here, including attempts to patent the wheel, the aerodynamics of hummingbirds, contact lens version of Google Glasses, and an answer to the age-old question: Why is your brain in your head instead tucked away safe and warm down with all your other organs?