October 14, 2022
On this date in 1947, Chuck Yeager piloted the Bell X1 rocket plane in the first supersonic flight. Sound can travel at 761 mph at sea level. Light can travel at the speed of 186 thousand miles per second!
Chuck Yeager posing with the Bell X-1 rocket plane on October 14, 1947. The plane was nicknamed “Glamorous Glennis” for his wife. Image credit: U.S. Air Force/Britannica