alidade उदाहरण वाक्य

उदाहरण वाक्य

1. It is used in conjunction with an alidade, usually positioned 1000 ft ( 304.8 m ) away and wherever possible set at the same level.
2. In that case, the observer moved the alidade until the object of interest is centered in the sights and then reads the graduations marked on the arc.
3. If observing the sun, it was both safer and easier to allow the shadow of one of the alidade's vanes to be cast onto the opposite vane.
4. In the diagram, the openings are exaggerated in size to show the shape; they would be smaller in a real alidade, perhaps 2 mm or so in width.
5. However, in 1906, indirect fire goniometric sights were adopted; these consisted of an alidade mounted on a circular scale graduated in degrees that was mounted on the shield.
6. The illustration of the Hevelius instrument to the right shows how two persons would use such a sextant : his wife Elisabetha is aligning the instrument while Johannes sets the alidade.
7. These instruments included an alidade, dumpy level, theodolite, Gunter's chain ( which was replaced by a steel tape ) and a solar compass or a vernier compass.
8. A significant number of stars in the sky, such as Aldebaran and Altair, and astronomical terms such as alidade, azimuth, and almucantar, are still referred to by their Arabic names.
9. The measurement is thus limited by the angular accuracy of the instrument and not the sine error of the length of an alidade, as it is in a mariner's astrolabe or similar older instrument.
10. A significant number of stars in the sky, such as Aldebaran, Altair and Deneb, and astronomical terms such as alidade, azimuth, and nadir, are still referred to by their Arabic names.