On this day the world’s first air conditioner, invented by Willis Carrier, received a US patent. While working for the Buffalo Forge Company in 1902, Carrier was asked to find a solution to the humidity problem that was causing magazine pages to wrinkle at Sackett-Wilhelms Lithographing and Publishing Company in Brooklyn. Carrier designed a system that controlled humidity and was quick to realise that his invention could benefit many other industries. This realisation led him to leave Buffalo Forge and to form the Carrier Engineering Corporation with six other engineers.
The World’s First Air Conditioner
2nd January 1906

Faced with such an invention, I cannot write sentences with my usual useless sarcasm.
Praise be to Willis now and forever, even if he was American.
Your all-time favourite invention after tortellini?
I can’t tell you whether it’s my favourite invention after tortellini, Tony. Actually, they are related: you can’t enjoy a course of hot tortellini in brodo in July or August without being surrounded by the cold air coming out of the conditioner’s hole. They are supposed to go side by side, they deserve each other.
It sounds like a perfectly symbiotic relationship. 🙂
Thank you, Tony.