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This projector turns your room into a starry sky — and it's just $50 right now. Korin Miller. June 3, 2022 at 7:56 AM ... This projector-slash-night light has an army of devoted fans at Amazon.
The opaque projector, or episcope is a device which displays opaque materials by shining a bright lamp onto the object from above. The episcope must be distinguished from the diascope , which is a projector used for projecting images of transparent objects (such as films), and from the epidiascope , which is capable of projecting images of both ...
Simulation of a spinning zoopraxiscope An early projector and seats from a movie theater. The main precursor to the movie projector was the magic lantern.In its most common setup it had a concave mirror behind a light source to help direct as much light as possible through a painted glass picture slide and a lens, out of the lantern onto a screen.
15 kW xenon short-arc lamp used in IMAX projectors High-speed, slow-motion video of a xenon flashtube recorded at a speed of 44,025 frames per second.. A xenon arc lamp is a highly specialized type of gas discharge lamp, an electric light that produces light by passing electricity through ionized xenon gas at high pressure.
The indoor/outdoor beast has legions of fans — and it's marked down to its lowest price ever.
The Mark I projector installed in the Deutsches Museum in 1923 was the world's first planetarium projector. The Mark III modified projector installed in the Planetario Humboldt 1950 in Caracas - Venezuela.It is the oldest in Latin America. Marks II through VI utilized two small spheres of lenses separated along a central axis.
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