Ernst Mach (February 18, 1838 - February 19, 1916) was an Austrian physicist and philosopher and is the namesake for the "Mach number" (also known as Mach speed) and the optical illusion known as Mach bands. Wikipedia
The definitive Wikipedia entry for Ernst Mach. Wikipedia is the biggest multilingual free-content encyclopedia on the Internet. en.wikipedia.org/wiki/Ernst_Mach
Lenins work Materialism and Empirio-criticism played a
decisive part in combating the Machist revision of Marxism. www.marxists.org/archive/lenin/works/1908/mec/
