Round 15: Tossup 13

An “antimetaphysical” chapter by this thinker claims that both the “ego” αβγ (“alpha-beta-gamma”) and “bodies” ABC and KLM reduce to Fechnerian “elements.” Vladimir Lenin denounced “Immanentists” and Russian followers of this “solipsistic” (10[1])thinker in a tract against “empirio-criticism.” This thinker supported a claim that perceptions consist merely of relations with papers on optical bands in which the contrast between shades appears exaggerated at boundaries. A Logical Positivist society named for this thinker was (10[1])a precursor to the Vienna Circle. (10[1]-5[1])This author of The Analysis of Sensations (10[2])denied the existence of Newtonian absolute space (-5[1])in The Science of Mechanics, inspiring (10[1])Albert Einstein (10[1])to list his namesake principle (10[1])as a pillar of (10[1])General (10[2])Relativity. For 10 points, what Austrian scientist (10[1])names the ratio of an object’s speed (10[1])to the speed (10[2])of (10[2])sound? (10[1])■END■ (10[6])

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