"Helioscope" is a word in ENGLISH
A telescope or instrument for viewing the sun without
injury to the eyes, as through colored glasses, or with mirrors which
reflect but a small portion of light.
The beauty of today may not be realised until it becomes tomorrow’s memory
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Following some duty overseas, the officers at the Fort were planning a welcome home party and dance for the unit. Being an all male combat force, they decided to request coeds from some of the surrounding colleges to attend. The Captain called Vassar and was assured by the Dean that arrangements could be made to send over a dozen of their most trustworthy students. The Captain hesitated, then said, "Would it also be possible to send a dozen or so of the other kind?"
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 definitionA telescope of low power, having a large field of view, used for finding comets.
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 definition