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The Corrective Optics Space Telescope Axial Replacement (COSTAR) is an optical correction instrument designed and built by NASA. It was created to correct the spherical aberration of the Hubble Space Telescope ' s primary mirror , which incorrectly focused light upon the Faint Object Camera (FOC), Faint Object Spectrograph (FOS), and Goddard ...
Pages in category "Correction instruments" The following 8 pages are in this category, out of 8 total. This list may not reflect recent changes. C. Chalkboard eraser;
The simplest form of adaptive optics is tip–tilt correction, [9] which corresponds to correction of the tilts of the wavefront in two dimensions (equivalent to correction of the position offsets for the image). This is performed using a rapidly moving tip–tilt mirror that makes small rotations around two of its axes.
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Wisconsin Prison Commissioner (1853–1874) Wisconsin Prison Commission (1874–1881) Wisconsin Board of Supervision of Charitable, Reformatory and Penal Institutions (1881–1891) Wisconsin Board of Control of Reformatory, Charitable, and Penal Institutions (1891–1939) Division of Corrections, Wisconsin Department of Public Welfare (1939–1967)
The company addressed these problems in July 1990 with the introduction of a reformulated "For Everything" correction fluid. The French corporation Société Bic acquired Wite-Out Products in 1992. [2] In 2017, sales of Wite-Out grew nearly 10 percent globally with AdWeek suggesting that the increase in sales was due to artists using the fluid ...
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