Ernst Mach Ernst Mach Ernst Waldfried Josef Wenzel Mach (; ; 18 February 1838 – 19 February 1916) was an Austrian physicist and philosopher, noted for his contributions to physics such as study of shock waves. The ratio of one's speed to that of sound is named the Mach number in his honor. As a philosopher of science, he was a major influence on logical positivism and American pragmatism. Through his criticism of Newton's theories of space and time, he foreshadowed Einstein's theory of relativity. Ernst Waldfried Josef Wenzel Mach was born in Chrlice (), Moravia (then in the Austrian empire, now
Mach Five his crew, and with other racers. Functions are not activated by a steering wheel hub lettered A-G, but instead, by switches mounted around the steering wheel. The Mach 6 succeeded the Mach 5 as the main vehicle for the rest of the series. More of the original gadgets were gradually revealed (such as the sludge slick) and used in future episodes. Eventually, the Mach 5 returned as Speed Racer Sr.'s main car in the season 2 premiere. Mach Five The is the racing car Speed Racer (Go Mifune in the Japanese version) drives in the anime series of the same