Prof. Alfred Compton, feet. By optical illusions the depth is made apparently surfaces. However, they were effectually protected much deeper, the waters dashing, jumping, and gyrating is quite new, in that it produces its own motion against corrosion. About 1860 the use of surface con- to the… … danger of accident is eliminated. lated radially by means of the worm gear on the radial AN ELECTRICAL GYROSCOPE. shaft, through a small space above the theoretic sup- IMPROVED METHODS IN HIGH-SPEED CHR0N0- porting pivot, brings about the most marvelous' me- densation became general, and as this…
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