"Micrometer" Quotes from Famous Books
 ... extended reference shortly, they all seem to resolve themselves into minute variations of the wove paper such as can be found in connection with most stamps of the 'sixties and 'seventies with the aid of a micrometer and a well trained imagination! We doubt whether any specialist, however willing and enthusiastic, could follow Mr. King through his ...
— The Stamps of Canada • Bertram Poole
... measuring a 2-inch surface may be procured, having a screw of, say, 50 threads to the inch, and a micrometer surface divided into 200 parts, each part easily capable of subdivision—into tenths or even twentieths. To get the full advantage of the spherometer it must screw exceedingly freely (i.e. must be well oiled with clock oil), and must not be fingered except at the milled head. ...
— On Laboratory Arts • Richard Threlfall
... adjusting the curves is not necessary, yet the price is lower in a yet greater degree, so that the amateur will find it better to buy than to make his eye-piece, unless he is anxious to test his mechanical powers. For a telescope which has no micrometer, the Huyghenian or negative eye-piece, as it is commonly called, is the best. As made by Huyghens, it consists of two plano-convex lenses, with their plane sides next the eye, as shown in ...
— Side-lights on Astronomy and Kindred Fields of Popular Science • Simon Newcomb
... the upper disc is charged by its insulated electrode within the tube E; the movable disc is charged if desired directly through the case of the instrument. The upper disc is screwed up or down by the micrometer head M, until the sighted position is reached. The readings of the micrometer on the top of the case ...
— The Standard Electrical Dictionary - A Popular Dictionary of Words and Terms Used in the Practice - of Electrical Engineering • T. O'Conor Slone
... with this difference—that within each line I sensed the presence of multitudes of finer lines, dwindling into infinitude, ultramicroscopic, traced by some instrument compared to whose delicacy our finest tool would be as a crowbar to the needle of a micrometer. ...
— The Moon Pool • A. Merritt
... with which a prominence shoots upward from the sun's limb can, of course, be measured directly by observations of the ordinary kind with a micrometer. The spectroscope, however, enables us to estimate the speed with which disturbances at the surface of the sun travel in the direction towards the earth or from the earth. We can measure this speed by watching the peculiar behaviour of the spectral ...
— The Story of the Heavens • Robert Stawell Ball
... circumstances, discovered in the examination of these animalcules, of uncommon interest. In a drop of water examined by a power of 28.224 (magnified superficies) there were fifty in number, on an average, in each square of the micrometer glass, of an eight hundred and fortieth of an inch; and as the drop occupied a circle on a plate of glass containing 529 of these squares, there must have been, in this single drop of water, taken ...
— The Ocean and its Wonders • R.M. Ballantyne
... inspection with special micrometer gauges insures all parts being perfect—within one-thousandth of an inch of absolute accuracy. This means, too, any time you want an extra part of your engine for replacement that you can get it and that it will fit. If we charged ...
— Business Correspondence • Anonymous
... correct with the micrometer, so that they consider some position-reading of the micrometer-head the zero point, and correct that for the error, which they determine by reflection in a trough of mercury. With this instrument they observe on certain stars of the British Catalogue, whose places are not very well determined, ...
— Maria Mitchell: Life, Letters, and Journals • Maria Mitchell |
