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.
In the year 1916 at the Necker-Enfants Malades Hospital in Paris, the stethoscope was invented by a French physician Rene Laennec by rolling up paper of plentiful sheets. In 1851, the binaural stethoscope was invented by Arthur Leared. A professor of Harvard School, Dr David Littmann in the 1960s created a new light weight stethoscope. In the year 1999, Richard Deslauriers patented the first external stethoscope of noise reducing. Category: Technology.