Encyclopedia > Supersonic

Article Content

Supersonic

Any speed over the speed of sound is said to be supersonic. Many modern fighter aircraft are supersonic. The Concorde is a supersonic passenger aircraft, currently the only one flying. Speeds greater than 5 times the speed of sound are sometimes referred to as hypersonic.

Featured Article

Brazil

... 2001, in part because of the strong recovery in the trade balance. Highly unequal income distribution remains a pressing problem. Demographics Main article: ...