Futility Closet is a collection of entertaining curiosities in history, literature, language, art, philosophy, and mathematics, designed to help you waste time as enjoyably as possible.
Visit futilitycloset.com → RSS feedOn Hacker News Feb 2010 – Sep 2026
Math & Algorithms 5History & Retro Computing 4Society, Policy & Culture 3Science & Space 2
Preparing a time capsule in 1939, the Westinghouse Electric & Manufacturing Company asked Albert Einstein to compose a message for the people of AD 6939. He sent this: Our time is rich in inventive minds, the inventions of which could facilitate our lives considerably. We are crossing the seas by power and utilize…
Albert Einstein used to say that he went to his office at the Institute for Advanced Study “just to have the privilege of walking home with Kurt Gödel.” The two would meet at Einstein’s home each day between 10 and 11 and undertake the half-hour walk to the institute. At 1 or 2 in the afternoon they’d walk back…
In 1999, UC-Davis civil engineer David Phillips was grocery shopping when he noticed something peculiar. Healthy Choice Foods was offering frequent-flyer miles to customers who bought its products. But a 25-cent pudding would bring 100 miles — the reward was worth more than the product itself. Recognizing a good…
A letter from Lewis Carroll to Nature, March 31, 1887: Having hit upon the following method of mentally computing the day of the week for any given date, I send it you in the hope that it may interest some of your readers. I am not a rapid computer myself, and as I find my average time for doing any such question is…