"Comet- Seeker" is a word in ENGLISH
A telescope of low power, having a large field of
view, used for finding comets.
The Road Not TakenTwo roads diverged in a yellow wood,And sorry I could not travel both And be one traveler, long I stood And looked down one as far as I could To where it bent in the undergrowth; Then took the other, as just as fair, And having perhaps the better claim, Because it was grassy and wanted wear; Though as for that the passing there Had worn them really about the same, And both that morning equally lay In leaves no step had trodden black. Oh, I kept the first for another day! Yet knowing how way leads on to way, I doubted if I should ever come back. I shall be telling this with a sigh Somewhere ages and ages hence: Two roads diverged in a wood, and I— I took the one less traveled by, And that has made all the difference.
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Q: What's the difference between a blonde and an ironing board? A: It's difficult to open the legs of an ironing board.
To bring to a true relative position, as the parts of an instrument; to regulate for use; as, to adjust …
Read the complete definitionThe operation of bringing all the parts of an instrument, as a microscope or telescope, into their proper relative position …
Read the complete definitionThe portion of a graduated instrument, as a quadrant or astrolabe, carrying the sights or telescope, and showing the degrees …
Read the complete definitionTo render larger, more extended, or more intense, and the like; -- used especially of telescopes, microscopes, etc.
Read the complete definitionThe diameter of the exposed part of the object glass of a telescope or other optical instrument; as, a telescope …
Read the complete definitionA dioptric telescope, fitted with two tubes joining, so as to enable a person to view an object with both …
Read the complete definitionA binocular glass, whether opera glass, telescope, or microscope.
Read the complete definitionAdapted to the use of both eyes; as, a binocular microscope or telescope.
Read the complete definitionA concave tool used in grinding lenses or the speculums of telescopes.
Read the complete definitionAn instrument for the accurate measurement of small differences of height; esp. of the differences in the height of the …
Read the complete definitionA reflecting telescope, part of which is made to rotate eccentrically, so as to produce a ringlike image of a …
Read the complete definitionTo render parallel to a certain line or direction; to bring into the same line, as the axes of telescopes, …
Read the complete definitionThe act of collimating; the adjustment of the line of the sights, as the axial line of the telescope of …
Read the complete definitionA telescope arranged and used to determine errors of collimation, both vertical and horizontal.
Read the complete definitionThe act of defining; determination of the limits; as, a telescope accurate in definition.
Read the complete definitionA plate with an opening, which is generally circular, used in instruments to cut off marginal portions of a beam …
Read the complete definitionOf or pertaining to dioptrics; assisting vision by means of the refraction of light; refractive; as, the dioptric system; a …
Read the complete definitionHaving no disk; appearing as a point and not expanded into a disk, as the image of a faint star …
Read the complete definitionAn instrument for determining the magnifying power of telescopes, consisting usually of a doubleimage micrometer applied to the eye end …
Read the complete definitionAn instrument consisting of a telescope so mounted as to have two axes of motion at right angles to each …
Read the complete definition