The parabolicmirror will reflect the star to a perfect focus.
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And curving around on the far wall, like a huge parabolicmirror, was the Map.
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For astronomical purposes a parabolicmirror is required.
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When parallel light rays hit a parabolicmirror, they all reflect to the same point-thefocal point.
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Had the elevation of the parabolicmirror been a few yards higher, none could have lived to tell the tale.
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You could not make out what it was, but I saw enough to convince me that it was a gigantic parabolicmirror.
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Thus, diffraction calculation via the convex parabolicmirror can be derived analytically and calculated rapidly using fast Fourier transform (FFT).
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The characteristic curve of the skyscraper is acting like a parabolicmirror, which is great at reflecting energy to one single point.
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One of the most recent developments has been a special tungsten filament in a gas-filled bulb placed at the focus of a small parabolicmirror.
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But it also means that instead of a shiny parabolicmirror for your telescope, you can use plain painted metal for a radio telescope lens.
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Solar Trust's technology, which uses parabolicmirrors to concentrate the sun's heat, has already been deployed at solar power plants in southern Spain.
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It will use parabolic trough technology, meaning arrays of parabolicmirrors will collect energy from the sun and use it to heat fluid.
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The solar steam generators would receive heated transfer fluid from solar thermal equipment from arrays of parabolicmirrors that collect energy from the sun.
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Instead, the huge plant is composed of 2,700 parabolicmirrors focusing the sun's rays on tubes filled with liquid.
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The projection process works like this: 3-D images are projected onto a substance like non-linear crystal, which is situated between a pair of parabolicmirrors.
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The facility would have occupied about 1,900 acres and include 3,500 parabolicmirrors that focus solar thermal energy onto a heat transfer fluid.