How to use in-sentence of “speed of sound”:
+ The first plane to travel at the speed of sound was the Bell X-1 in 1947 and was piloted by Chuck Yeager.
+ The speed of sound is also known as Mach 1.
+ The speed of sound in the water is known, so the depth can be calculated.
+ The coaster was renamed to Speed of Sound and the track was painted orange.
+ An extreme example of the doppler effect is an aeroplane flying at a faster speed than the speed of sound and how the wall of sound is heard on the ground.
+ The speed of sound through steel is much higher than through air, so people imagined that light must travel through a similar medium too.

