Mathematical Instruments: Their Construction, Adjustment, Testing and Use : Comprising Drawing, Measuring, Optical, Surveying, and Astronomical InstrumentsCrosby, Lockwood and Company, 1884 - 159 pages |
From inside the book
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Page 14
... altitude and the inclination of the emergent beam to the horizon . Let s represent this minimum deviation , and a the refracting angle of the prism , and let the A refracting power be represented by μ : then sin . A + S 2 μπ A sin . 2 ...
... altitude and the inclination of the emergent beam to the horizon . Let s represent this minimum deviation , and a the refracting angle of the prism , and let the A refracting power be represented by μ : then sin . A + S 2 μπ A sin . 2 ...
Page 111
... altitude and azimuth , and a sliding rectilineal motion in a direction at right angles to the optical axis of the lens . The construction is such as to admit of these movements . ( See Figs . 1 , 2 , and 3. ) The top of the stand ...
... altitude and azimuth , and a sliding rectilineal motion in a direction at right angles to the optical axis of the lens . The construction is such as to admit of these movements . ( See Figs . 1 , 2 , and 3. ) The top of the stand ...
Page
... altitudes by the barometer and thermometer . A chapter has also been added to Part V. upon the construction and use of the Equatorial , undoubtedly the form of instrument best adapted for the examination of those phenomena of the solar ...
... altitudes by the barometer and thermometer . A chapter has also been added to Part V. upon the construction and use of the Equatorial , undoubtedly the form of instrument best adapted for the examination of those phenomena of the solar ...
Page
... Altitude Application of the Barometer to the determination of difference 3 Meteorological Phenomena denoted by the Barometer Thermometric Hypsometry PART V. ASTRONOMICAL INSTRUMENTS . CHAPTER I. HADLEY SEXTANT . X CONTENTS .
... Altitude Application of the Barometer to the determination of difference 3 Meteorological Phenomena denoted by the Barometer Thermometric Hypsometry PART V. ASTRONOMICAL INSTRUMENTS . CHAPTER I. HADLEY SEXTANT . X CONTENTS .
Page
... ALTITUDE AND AZIMUTH INSTRUMENT . Description of the Altitude and Azimuth Instrument Adjustments of this Instrument Method of observing with this Instrument Use of the Instrument CHAPTER IV . SUBSIDIARY INSTRUMENTS . The Reading ...
... ALTITUDE AND AZIMUTH INSTRUMENT . Description of the Altitude and Azimuth Instrument Adjustments of this Instrument Method of observing with this Instrument Use of the Instrument CHAPTER IV . SUBSIDIARY INSTRUMENTS . The Reading ...
Common terms and phrases
adjustment altitude axis barometer beam compasses bisected centre chords chromatic dispersion circle clamp cloth coincident collimation compasses construction cross wires D line decimal point described diameter difference distinct vision divided divisor drawing Dumpy level edge Edition ENGINEERING equal extent will reach eye-piece feet focal length gauge point given number glass groove horizontal inches instru instrument integral figures integral places latitude lens lenses light limb line of sines logarithmic marked means measured ment mercury meridian microscope mirror number of integral object object-glass object-piece observed parallax parallel plate pencil plane position primary divisions prism produced proportional protractor radius rays reading reflected reflector represent right angles right ascension round rule scale screw side slide slide-rule spherical aberration spirit level station straight edge surface taken tangents telescope term theodolite tion transverse distance triangle tube turned vernier vertical zero
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