filter wheels
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Color wheel — For the circular mechanical device for tinting a light beam (e.g., in a DLP video projector), see color wheel (optics). Boutet s 7 color and 12 color color circles from 1708 … Wikipedia
Spirit rover — (MER A) Artist s concept of Rover on Mars Operator NASA Mission type Rover Launch date … Wikipedia
Mechanical television — This schematic shows the circular paths traced by the holes in a Nipkow disk. Mechanical television (also called televisor) was a broadcast television system that used mechanical or electromechanical devices to capture and display video images.… … Wikipedia
Color correction — This article is about color correction using lighting and camera filters. For video color correction in post production, see Color grading. For color correction of still images in post production, see Color balance. For mutual color correction of … Wikipedia
NASA Infrared Telescope Facility — The NASA Infrared Telescope Facility atop Mauna Kea … Wikipedia
Vacuum cleaner — Cylinder vacuum cleaner for home use. French train vacuum cleaner … Wikipedia
Minimoog — Manufactured by Moog Music Dates 1970 1975, 1977 1981 [1] … Wikipedia
Fingerboard (skateboard) — A fingerboard or fingerskate is a miniature version of a skateboard complete with moving wheels, graphics and trucks. It has the same scale as a skateboard, but is 96 millimeters long. Skateboarding tricks may be performed using fingers instead… … Wikipedia
Tram controls — The following article describes the controls on electric, rather than steam trams.OverviewThe operation of trams is relatively simple. As trams run on rails, they do not require steering controls. However they do require controls for the smooth… … Wikipedia
Perl Object Environment — For the Mach variant, see Mach kernel The Perl Object Environment or POE is a library of Perl modules written in the Perl programming language by Rocco Caputo et alia. From CPAN:: POE originally was developed as the core of a persistent object… … Wikipedia
Military equipment of Turkey — The military equipment of Turkey includes a wide array of arms, artilleries, large surface vessels, cannons, armored vehicles, mortars, unmanned vehicles and many different equipments. Contents 1 Historical development 1.1 General 1.2 1923 1950 … Wikipedia
