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An astronomical instrument is a device for observing, measuring, or recording astronomical data. [ citation needed ] They are used in the scientific field of astronomy , a natural science that studies celestial objects and the phenomena that occur in the cosmos, with the object of explaining their origin and evolution over time.
An astrolabe consists of a disk with a wide, raised rim, called the mater (mother), which is deep enough to hold one or more flat plates called tympans, or climates. A tympan is made for a specific latitude and is engraved with a stereographic projection of circles denoting azimuth and altitude and representing the portion of the celestial ...
In 1777, Joseph Haydn's opera "Il mondo della luna"("The world on the moon") premiered. Author and classical music critic David Hurwitz describes Joseph Haydn's choral and chamber orchestra piece, The Creation, composed in 1798, as space music, both in the sense of the sound of the music, ("a genuine piece of 'space music' featuring softly pulsating high violins and winds above low cellos and ...
Space music, also called spacemusic or space ambient, is a subgenre of ambient music and is described as "tranquil, hypnotic and moving". It is derived from new-age music and is associated with lounge music , easy listening , and elevator music .
The central space was used to observe the rising of the Sun and full moon. Three markings locate sunrise at the summer and winter solstices and at the two equinoxes. Four more give the minimum and maximum declinations of the full moon: in summer, and in winter. Two measure the lengths of lunar months.
A quadrant is an instrument used to measure angles up to 90°. Different versions of this instrument could be used to calculate various readings, such as longitude, latitude, and time of day. Its earliest recorded usage was in ancient India in Rigvedic times by Rishi Atri to observe a solar eclipse.
Drawing – visual art that makes use of any number of drawing instruments to mark a two-dimensional medium. Design – the process for planning the overall look of an object. Film – motion pictures. Painting – practice of applying paint, pigment, color or other medium to a surface with a brush or other object. History of painting
Abu Rayhan Biruni designed an instrument he called "Box of the Moon", which was a mechanical lunisolar calendar, employing a gear train and eight gear-wheels. [78] This was an early example of a fixed-wired knowledge processing machine. [79] This work of Al Biruni uses the same gear trains preserved in a 6th century Byzantine portable sundial. [80]