Tonsil stones, or tonsilloliths, are clusters of calcareous matter that form in the rear of the mouth in the crevasses of the tonsils, called tonsillar crypts. Though the mechanism by which they form is debated, they are known to be composed of calcium salts, sometimes in combination with mineral salts. Typically small in size, they can be difficult to diagnose. However, they are not harmful and can usually be removed by the patient. How big can tonsilloliths get?
Back in the day
For the entirety of his Major League Baseball career, Ray Chapman was a shortstop for Cleveland. He set a team record for stolen bases that would stand for decades, but his career was tragically cut short when he was hit in the head by a pitch thrown by Yankees hurler Carl Mays. According to eyewitnesses, Chapman likely never even saw the ball. He is the only Major League Baseball player to have died as a result of an injury received in a game. His death led the league to establish what rule?
Born on a day like today
Wundt was a German physiologist and psychologist who stressed the use of scientific methods in psychology. Regarded as one of the fathers of psychology and the founder of experimental psychology, Wundt is credited with many firsts in the field: he gave the first course in scientific psychology in 1862, established the first psychological laboratory in 1879, and founded the first journal of psychology in 1881. Wundt's body of written work is said to include how many pages?