QWERTY keyboard layout was designed to prevent typewriter jamming, not for speed

The printing press was invented by Gutenberg around 1440 — but China had movable type 400 years earlier

Gutenberg's press, circa 1440, followed China's 1000-year-old movable type innovation

The first computer bug was an actual bug — a moth found in a Harvard Mark II relay in 1947

A moth caused a malfunction in the Harvard Mark II computer in 1947

The longest word in English without a repeated letter is 'uncopyrightable' — 15 letters

'uncopyrightable' is the longest English word without repeating letters, 15 letters long

The Monty Hall problem: you should always switch doors — switching wins 2/3 of the time

Switching doors in the Monty Hall problem increases your chances of winning from 1/3 to 2/3

The fax machine was invented in 1843 — 33 years before the telephone

Alexander Bain patented the electric fax machine in 1843, predating Bell's telephone by 33 years

The first alarm clock could only ring at 4 AM — invented by Levi Hutchins in 1787

Levi Hutchins created the first alarm clock in 1787, set to ring at 4 AM