Neuronal signaling. To support the general function of the nervous system, neurons have evolved unique capabilities for intracellular signaling (communication within the cell) and intercellular signaling (communication between cells).
Because of this, gyroscopes are useful for measuring or maintaining orientation. Invention History. The gyroscope was invented in 1852 by the French experimental physicist Leon Foucault (1819-1868) as part of a two-pronged investigation of the rotation of the earth.
Nevertheless, this version of the lichtleiter was considered reasonably successful. The first electrically illuminated endoscope was made by Gustave Trouve in 1869. It used an electrical current to create illumination from a white-hot, glowing, platinum wire and had the light source at the distal tip of the instrument.