Mathematical Instruments: Their Construction, Adjustment, Testing, and Use, Volume 3Lockwood & Company, 1891 |
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Halaman 12
... parallax of the instru- ble at the distance of a quarter greater than that it is so small anish . It also varies with the ishes altogether whenever the in a direct line between the e in perfect adjustment , place end of the telescope ...
... parallax of the instru- ble at the distance of a quarter greater than that it is so small anish . It also varies with the ishes altogether whenever the in a direct line between the e in perfect adjustment , place end of the telescope ...
Halaman 15
... parallax . The existence of parallax is determined by moving the eye about when looking through the telescope , and observing whether the cross wires change their position , and are flit- tering and undefined . To correct this error ...
... parallax . The existence of parallax is determined by moving the eye about when looking through the telescope , and observing whether the cross wires change their position , and are flit- tering and undefined . To correct this error ...
Halaman 16
... parallax is very inconvenient , and , where disregarded , has frequently been productive of serious error . It will not always be found sufficient to set the eye - piece first , and the object - glass after- wards . The setting of the ...
... parallax is very inconvenient , and , where disregarded , has frequently been productive of serious error . It will not always be found sufficient to set the eye - piece first , and the object - glass after- wards . The setting of the ...
Halaman 40
... parallax is elimi- e object F , proceeding in the e mirror A , is reflected in the B , is again reflected in the D B A E F lled for facility and rapidity ar from a given point on a his point , and holding the otions of an assistant ...
... parallax is elimi- e object F , proceeding in the e mirror A , is reflected in the B , is again reflected in the D B A E F lled for facility and rapidity ar from a given point on a his point , and holding the otions of an assistant ...
Halaman 49
... parallax of the instru- ment , and is scarcely perceptible at the distance of a quarter of a mile , while for distances greater than that it is so small that it may be considered to vanish . It also varies with the amount of deviation ...
... parallax of the instru- ment , and is scarcely perceptible at the distance of a quarter of a mile , while for distances greater than that it is so small that it may be considered to vanish . It also varies with the amount of deviation ...
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Mathematical Instruments: Their Construction, Adjustment, Testing, and Use ... John Fry Heather Pratinjau tidak tersedia - 2018 |
Istilah dan frasa umum
accuracy altitude and azimuth atmosphere attached axis azimuth instrument barometer beam compass bearings bisected bubble centre chain clamp cloth coincidence column construction correction cross wires Crown 8vo D. K. CLARK diaphragm difference of altitude difference of level direct Dumpy level Edition ELECTRIC Electrical Engineering Engineering equal equatorial error eye-piece feet fixed fore glass graduated Gunter's chain height hinge-joint horizontal angles horizontal limb Illustrations inches instru intersection length line of collimation means measured ment mercury mercury rises meridian moved object observed obtained parallax parallel plate screws perfect perpendicular plane plot polar distance pole position Practical prism reading reflected image right angles right ascension round scale sextant sixth column spirit level stadiometer staff station STEAM survey tangent screw telescope temperature theodolite thermometer tion transit triangles tube turning vernier plate vertical circle vertical limb wind zero
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