"Micrometer" Quotes from Famous Books
 ... runt, mouse, small fry; millet seed, mustard seed; barleycorn; pebble, grain of sand; molehill, button, bubble. point; atom &c (small quantity) 32; fragment &c (small part) 51; powder &c 330; point of a pin, mathematical point; minutiae &c (unimportance) 643. micrometer; vernier; scale. microphotography, photomicrography, micrography^; photomicrograph, microphotograph; microscopy; microscope (optical instruments) 445. V. be little &c adj.; lie in a nutshell; become small &c (decrease) ...
— Roget's Thesaurus of English Words and Phrases: Body • Roget
... with concave eye-piece, but with a magnifying glass to examine the focal image, at which also a fixed mark could be placed. Kepler was the first to suggest this. Gascoigne was the first to use it. Huyghens used a metal strip of variable width in the focus, as a micrometer to cover a planetary disc, and so to measure the width covered by the planet. The Marquis Malvasia, in 1662, described the network of fine silver threads at right angles, which he used in the focus, much ...
— History of Astronomy • George Forbes
... very small dimensions, supplied by accumulators, and which are lighted at will. Each of these lamps is of one candle power; two of them are designed for the reading of the two circles of right ascension and of declination; a third serves for the reading of the position circle of the micrometer; two others are employed for the reading of the drums fixed upon the micrometric screws; four others serve for rendering the spider threads of the reticule brilliant upon a black ground; and still another serves for illuminating the ...
— Scientific American Supplement, No. 803, May 23, 1891 • Various |
