. Carnegie Institution of Washington publication. FIG. M A H BJ I A 0 0 ! L ^ FIG. 9. worm-gear drive. Two features were added to make the device more useful. First, the phosphorescent substance was never painted on the disk, but on brass rings which fitted neatly on the disk; second, the speeds were known by reading on a galvanometer G the deflections produced by a current induced. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the origi
. Carnegie Institution of Washington publication. FIG. M A H BJ I A 0 0 ! L ^ FIG. 9. worm-gear drive. Two features were added to make the device more useful. First, the phosphorescent substance was never painted on the disk, but on brass rings which fitted neatly on the disk; second, the speeds were known by reading on a galvanometer G the deflections produced by a current induced. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Carnegie Institution of Washington. Washington, Carnegie Institution of Washington
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Keywords: ., bookauthorcarnegie, bookcentury1900, bookdecade1900, bookyear1902
