<    1    >

---

Speed of sound

The speed of sound is the distance travelled per unit of time by a sound wave as it propagates through an elastic medium.

 

---

Explanation

 

---

History Austrian physicist Ernst Mach (1838 - 1916) is best known for the speed of sound called MACH 1.

---

العربية   Deutsch   Español   Français   Nederlands   中文   Русский