# Measuring Speed of Sound – What Is The Speed of Sound?

Measuring Speed of Sound: What is the exact speed of sound in real life? Answering this question isn’t that complicated, but at the same time, it isn’t too easy. When Galileo Galilei recorded the relationship between the frequency of the wave to the pitch it produces, people started questioning the speed of sound. If the sound is a wave, then what is the real speed of the sound?

In the early 1700s, a French scientist by the name of Pierre Gassendi made one of the earliest attempts to measure the speed of sound. He started experimenting with the sound of the gunshot and measured the sound of the shot at a distance. He assumed that the speed of sound is 478.4 metres per second (1,569.6 feet per second). But now we know that the speed of sound depends on the temperature and the medium through which a sound wave is propagating.

At 20 °C (68 °F), the speed of sound in air is about 343 metres per second (1,125 ft/s; 1,235 km/h; 767 mph; 667 kn), or one kilometre in 2.9 s or one mile in 4.7 s. At 0 °C (32 °F), the speed of sound is about 331 m/s (1,086 ft/s; 1,192 km/h; 740 mph; 643 know). According to Wikipedia.

## Formula

The formula for measuring the speed of sound is below:

speed = distance/time