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The wall then becomes a reflector that bounces the light at a different angle from the incoming rays of the sun.
The instrument is a 3.9-metre (153-inch) reflector that has notably distortion-free optics and an extremely precise computer-controlled system for pinpointing and tracking celestial objects.
Due to the expanded cone shape which light rays create when transmitted - there would be no reflector that could 'catch' all of the light rays.
HOW THE RADIOTELESCOPE WORKED The observatory at Green Bank, W. Va., like other radiotelescopes, focused radio waves using a parabolic reflector that served the same function as the light-gathering mirror of a conventional optical telescope.
For the flat reflector the path taken is the shortest of all in the vicinity, while for the reflector that is more strongly curved than the ellipse it is the longest.
In folded position, the satellite is essentially no more bulky than its reflector that has the solar array fixed on the non-reflecting side.
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Optical telescopes are either refractors or reflectors that use lenses or mirrors, respectively, for their main light-collecting elements (objectives).
This is the one I use every day: it has added light reflectors that work wonders on older skin, flattering it without naff sparkle and glitter.
We introduce a model to design reflectors that take into account the inverse square law for radiation.
The satellite hosts well-calibrated laser reflectors that provide a unique target for experiments involving laser illumination.
Rather than put things in, she said, you spend a great deal of time taking things out -- air-conditioners, reflectors that run down the middle of the street, cars of the wrong vintage and satellite dishes.
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