bobsurgranny on MSN

RAF F-35Bs made a low-level pass - everything else disappeared

RAF F-35B jets conducted a low-level training run through the Mach Loop in Wales, producing a sound unlike earlier generation ...
Autoblog

Ford Mustang Mach 1 history: Time-traveling at the speed of sound

“Mach 1”: The term refers to the speed of sound, which is not a fixed number but varies based on the temperature of the surrounding gas. Named for Austrian physicist Ernst Mach, the term is a little ...