The speed of sound and the speed of light are two fundamentally different quantities with significantly different values. The speed of sound refers to the velocity at which sound waves propagate through a medium, such as air, water, or solids. The speed of sound is dependent on the properties of the medium, such as density and elasticity. In dry air at sea level and at a temperature of about 20 degrees Celsius, the speed of sound is approximately 343 meters per second or 1,125 feet per second. #

Have you ever watched an aircraft fly overhead, and a few seconds after it passes, you hear the roar of the jet engines cutting through the skies? Those aircraft just broke the sound barrier, but what does that really mean? Check out today's epic new video to find out. | The Infographics Show

646K views · 10K reactions | What was the first invention to break the sound barrier? | QI - Quite Interesting | Facebook