Hans Jurgen Eysenck (March 4, 1916 - September 4, 1997) was a German psychologist. He was born in Germany, but moved to England in the 1930s because of his opposition to the Nazis. He had interests in a wide range of areas, but he is most remembered for his work in intelligence and personality. He wrote over 50 books and over 900 academic articles in his life and was founder editor of the journal Personality and Individual Differences[?].
... spinning gyro tops will not simply fall over, but start precessing around. (The precessing motion is perpendicular to the torque trying to make the gyro fall over.)
The ...