Ampex introduced the Quadruplex videotape professional broadcast standard format with its Ampex VRX-1000 in 1956. It became the world’s first commercially successful videotape recorder using two-inch (5.1 cm) wide tape. –Source
Astronauts in space can grow up to 3 percent taller during the time spent living in micro gravity, NASA scientists say. That means that a 6-foot-tall (1.8 meters) person could gain as many as 2 inches (5 centimeters) while in orbit. – Source
Misrere,  Mozart had gained fame for the work and was summoned to Rome by Pope Clement XIV, who showered praise on him for his feat of musical genius and awarded him the Chivalric Order of the Golden Spur on July 4, 1770. – Source
To solve the differential equations, Lukyanov fiddled around with a series of interconnected, water-filled glass tubes. The levels in certain tubes gave the answers, while adjusting taps and plugs changed variables. – Source
M31 is still approaching the Milky Way by about 130 km per second. The two galaxies will merge a few billion years from now. This is normal. Neighboring galaxies are bound into clusters by their mutual gravitational attraction. – Source
“5” in Thai is pronounced “ha”, so three of them would be “hahaha.” “5” in Mandarin Chinese is pronounced “wu” so three together would be “wuwuwu”, which sounds somewhat like sobbing.- Source