events
Jacqueline Cochran becomes the first woman to break the sound barrier.
Related Wikipedia articles
Jacqueline Cochran
American aviator and businesswoman (1906–1980)
Jacqueline Cochran was an American pilot and business executive. She pioneered women's aviation as one of the most prominent racing pilots of her generation. She set numerous records and was the first woman to break the sound barrier on 18 May 1953. Cochran was the wartime head…Source: Wikipedia (CC BY-SA)
Sound barrier
Sudden increase of undesirable effects when an aircraft approaches the speed of sound
The sound barrier or sonic barrier is the large increase in aerodynamic drag and other undesirable effects experienced by an aircraft or other object when it approaches the speed of sound. When aircraft first approached the speed of sound, these effects were seen as constituting…Source: Wikipedia (CC BY-SA)
May 18
Day of the year
May 18 is the 138th day of the year in the Gregorian calendar; 227 days remain until the end of the year.Source: Wikipedia (CC BY-SA)