An essayist is an author who writes compositions which can be about any particular subject. Although, the essay which is written by the essayist is usually shorter and less methological than a formal finished treatise[?].
... point, but the gyro will also be accelerated to a smaller extent by the slipping friction.
The device is covered by US patents 3,726,146 (1973) and 5,353,655 (1994) ...