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Here, you'll find a selection of our favorite Valentine's Day crafts for kids—easy, simple Valentine's Day activities and projects to keep small hands entertained in advance of the holiday.
A good example of a "typical" planetarium projector of the 1960s was the Universal Projection Planetarium type 23/6, made by VEB Carl Zeiss Jena in what was then East Germany. [1] This model of Zeiss projector was a 13-foot (4.0 m)-long dumbbell-shaped object, with 29-inch (740 mm)-diameter spheres attached at each end representing the night ...
Digistar is the first computer graphics-based planetarium projection and content system.It was designed by Evans & Sutherland and released in 1983. The technology originally focused on accurate and high quality display of stars, including for the first time showing stars from points of view other than Earth's surface, travelling through the stars, and accurately showing celestial bodies from ...
Inside a planetarium projection hall. (Belgrade Planetarium, Serbia) Inside the same hall during projection. (Belgrade Planetarium, Serbia) A planetarium (pl.: planetariums or planetaria) is a theatre built primarily for presenting educational and entertaining shows about astronomy and the night sky, or for training in celestial navigation. [1 ...
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The first Zeiss Mark I projector (the first planetarium projector in the world) was installed in the Deutsches Museum in Munich in August, 1923. [3] It possessed a distinctive appearance, with a single sphere of projection lenses supported above a large, angled "planet cage".
The Rosicrucian Park planetarium opens in San Jose, California. It is the fifth built in the United States, and one of the first to have a star projector built in the US, [citation needed] constructed by hand by H. Spencer Lewis, then leader of the Rosicrucian Order, AMORC. 1937: Osaka planetarium opens, Seymour Planetarium dedicated. [2] 1938
Video images can be projected onto the dome from DVD, laser disk, computer, or SVHS tapes. The planetarium is powered by a Digistar II star projector. [1] In 2004 the Barlow acquired a laser projection system that uses a three-color argon laser to draw images set to music on the dome. The planetarium also has a 10,000-watt sound system. [2]