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ATS officers-in-training crew a 90 cm searchlight in Western Command, 1944. A searchlight (or spotlight) is an apparatus that combines an extremely bright source (traditionally a carbon arc lamp) with a mirrored parabolic reflector to project a powerful beam of light of approximately parallel rays in a particular direction.
GNU FreeFont (also known as Free UCS Outline Fonts) is a family of free OpenType, TrueType and WOFF vector fonts, implementing as much of the Universal Character Set (UCS) as possible, aside from the very large CJK Asian character set. The project was initiated in 2002 by Primož Peterlin and is now maintained by Steve White.
Track and field, gymnasium (from ARIB STD B24) Tent: ⛺︎: U+26FA ⛺ Camping site (from ARIB STD B24) Japanese bank symbol ⛻ U+26FB ⛻ From ARIB STD B24: Headstone graveyard symbol ⛼ U+26FC ⛼ Graveyard, memorial park, cemetery (from ARIB STD B24) Fuel pump: ⛽︎: U+26FD ⛽ Petrol station, gas station (from ARIB STD ...
Heavens-Above is a non-profit website developed and maintained by Chris Peat as Heavens-Above GmbH.The web site is dedicated to helping people observe and track satellites orbiting the Earth without the need for optical equipment such as binoculars or telescopes.
The 8 kilowatt, direct current generator that powered the searchlight was driven by a six-cylinder, BMW engine, of a type used in pre-war cars. Typical tactics were to sweep the search light in an S-shaped pattern along the targets' expected course with the beam dispersed, once the target was detected, it was then tracked using the focused beam ...
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A barn door tracker, also known as a Haig or Scotch mount, is a device used to cancel out the diurnal motion of the Earth for the observation or photography of astronomical objects. It is a simple alternative to attaching a camera to a motorized equatorial mount .
Deep-Sky Planner is observation planning and logging software for amateur astronomers. It helps observers to determine where and when to view all types of celestial objects. It runs on Windows. Deep-Sky Planner was originally published [1] April 1, 1994 by Sky Publishing Corporation. Knightware, LLC began publishing Deep-Sky Planner in 2005. [2]