Template:Selected anniversaries/December 24
1473: Priest, philosopher, physicist, and theologian John Cantius dies. He helped develop Jean Buridan's theory of impetus, anticipating the work of Galileo and Newton.
1818: Physicist and brewer James Prescott Joule born. He will study the nature of heat, and discover its relationship to mechanical work
1822: Mathematician Charles Hermite born. He will do research on number theory, quadratic forms, invariant theory, orthogonal polynomials, elliptic functions, and algebra.
1906: Inventor Reginald Fessenden transmits the first radio broadcast; consisting of a poetry reading, a violin solo, and a speech.
1917: Politician Ivan Goremykin dies. He is remembered for his Extreme Moustaches.
1967: Performance artist and crime-fighter Brion Gysin invents hand-held scrying engine, sends Christmas Eve greetings to Hamangia figurines.
2016: New form of Brownian ratchet is hottest Christmas gift of the year.