Danilo Enrique Noreña Benítez
mach 49
Last name of physicist and philosopher of austric nationality, named Ernest Mach. Brno of the Czech Republic was born in Chrlice, today. He studied sound waves and fluid mechanics. Unit for measuring the speed of airplanes, equivalent to the atmospheric speed of sound (340 meters per second, 1225 km / h). Sonic.
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