Invention Timeline - Amos Emerson Dolbear, American Physicist; Invented and Perfected an Electric Gyroscope in 1867
November 10, 1837 and d. ?
American physicist. In 1867 he invented and perfected an electric gyroscope, used to demonstrate the rotation of the earth; in 1872 he used tuning-forks to exhibit Lissajou’s curves and the opeidoscope for the exhibition of the vocal vibrations; in 1876 he perfected and patented his magneto-electric telephone, and in 1879 the static telephone. He published “The Art of Projecting” (1876); “The Speaking Telephone” (1877); and “Sound and Its Phenomena” (1885).
Come in, To-Day, come in!
I have confess’d my sin
To thee, young promise-bearer!
New Lord of Earth!
I hail thy birth-
The crown awaits the wearer.
Child of the ages past!
Sire of a mightier line!
On the same deeps our lot is cast;
The world is thine-and mine!
—The Lost Day: Mackay
All the inventions that the world contains,
Were not by reason first found out, nor brains;
But pass for theirs who had the luck to light
Upon them by mistake or oversight.
—Butler
1747—Creed projected a machine having an object similar to that of the phonograph.
