Alfred Jules Ayer (October 29, 1910 - June 27, 1989) was a philosopher who helped popularise logical positivism in English-speaking countries in his books Language, Truth and Logic (1936) and The Problem of Knowledge (1956).
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... to the force applied. This is why spinning gyro tops will not simply fall over, but start precessing around. (The precessing motion is perpendicular to the torque ...