mounting

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mounting

The structure that supports an astronomical telescope, designed so that the telescope may be pointed at almost every part of the heavens, preferably without forcing an observer into awkward positions. All telescope mountings must therefore be constructed so that the tube can turn about two axes at right angles. There are two main types: the equatorial mounting, with one axis parallel to the Earth's axis, and the altazimuth mounting, with one axis vertical. Since high magnifications exaggerate any movement, the support must be rigid. In addition, because the Earth is turning through 0.25° per minute, means must be provided to move the telescope smoothly in the opposite direction; this counterbalances the diurnal motion of a star and keeps it in the field of view.
References in classic literature ?
The remaining hours of the morning passed away pleasantly enough, in looking over the drawings, arranging them in sets, trimming their ragged edges, and accomplishing the other necessary preparations in anticipation of the business of mounting them.
Turning, I beheld the green warriors mounting the ridge and looking for their chieftain.
For what dread of want or poverty that can reach or harass the student can compare with what the soldier feels, who finds himself beleaguered in some stronghold mounting guard in some ravelin or cavalier, knows that the enemy is pushing a mine towards the post where he is stationed, and cannot under any circumstances retire or fly from the imminent danger that threatens him?
After reflecting a moment, temporarily sheltered beneath the little wicket of the prison of the treasurer of the Sainte- Chappelle, as to the shelter which he would select for the night, having all the pavements of Paris to choose from, he remembered to have noticed the week previously in the Rue de la Savaterie, at the door of a councillor of the parliament, a stepping stone for mounting a mule, and to have said to himself that that stone would furnish, on occasion, a very excellent pillow for a mendicant or a poet.
Rostov was just mounting to go for a ride round the neighboring villages with Ilyin; he let Lavrushka have another horse and took him along with him.
The Mangaboos saw her escape, and several of them caught up their thorns and gave chase, mounting through the air after her.
The young girl, whilst the prisoner was mounting the staircase, appeared at the narrow door of her chamber, which opened on that very flight of steps; and, holding the lamp in her right hand, she at the same time lit up her pretty blooming face, surrounded by a profusion of rich wavy golden locks, whilst with her left she held her white night-dress closely over her breast, having been roused from her first slumber by the unexpected arrival of Van Baerle.
For example, by all their common and familiar performances--throwing large objects into the air which never come down; causing plants to sprout, grow visibly and blossom, in bare ground chosen by spectators; putting a man into a wicker basket, piercing him through and through with a sword while he shrieks and bleeds, and then--the basket being opened nothing is there; tossing the free end of a silken ladder into the air, mounting it and disappearing.
You surely don't think of mounting a mass like that upon a carriage?