Ernst Mach : This Austrian physicist showed that when an object crosses the speed of sound ,there is a loud sound called a sonic boom. Today we know that loud sonic booms are produced when a supersonic jet crosses the speed of sound. To honor the scientist the speed of supersonic aircraft today is given in terms of Mach numbers. These numbers relate speed to the speed of sound. Thus ,an aircraft travelling at Mach 2 has a speed double that of sound.According to the above discussion, what will be the speed depicted by Mach.
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observation from a reader sent me on a search for a good photograph of a sonic boom, and inevitably, I ended up chasing facts and cool tidbits down a few rabbit holes.
First cool tidbit: Sonic booms are created by shock waves, and those shock waves were first photographed in 1888 by Ernst Mach, who was studying the pressure waves produced by bullets traveling at supersonic speeds.
Mach bullet
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