Artificial horizon, gyroscopic type, in fitted rectangular mahogany case, possibly made by A. Demichel of Paris, France, 1886-1895. Invented by French Admiral and inventor, Georges Ernest Fleuriais (1840-1895). Consisting of an air-powered (separate pump) gyroscope, within a black-lacquered brass case that is attached to the side of a sextant or quitant. A piece of glass through the body of the gyroscope carries a series of horizontal lines, which appear as a constant horizontal line of reference when the device is spun.
- Object Number:
- furnishing and equipment
- tools & equipment
- optical instrument
- ancillary optical instrument
- artificial horizon
- The Royal Society
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