On Oct 14, 1947: Captain Chuck Yeager defied the gurus when he flew a lot quicker than Mach 1, the speed of sound, and lived to inform the tale. This astounding feat set the USA forward of the rest of the planet for https://jananmwc413956.tokka-blog.com/30109484/the-basic-principles-of-chuck-yeager-s-supersonic-plane-in-silver-coin