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.
The phenakistoscope was an early animation device. It was invented in 1831, simultaneously by the Belgian Joseph Plateau and the Austrian Simon von Stampfer. It consists of a disk with a series of images, drawn on radii evenly spaced around the center of the disk.