A text book of physics, for the use of students of science and engineering (1918)
Duncan, John, d. 1941, Starling, Sydney George, 1873- · London Macmillan · leaf 43
e is a milledhead at G for convenience in rotatingthe screw. A scale H is fixed to A, andhas divisions cut on it at intervals equalto the pitch of the screw. The instru-ment rests on a glass plate K, the uppersurface of which is as nearly plane aspossible. L is an object the thicknessof which is to… … Flo 18 Spherometer. .Mill X ExPT. 5.—Thickness of an object by use of the spherometer. Placethe spherometer mi the plane glass plate. Rotate the screw until all fourpoints bear equally on the glass ; this condition may be tested by pushingone of tin- legs in a direction nearly horizontal. If the…
Physics
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