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What exactly does an interferometer do? Invented by Albert Michelson in the 19th century, the interferometer makes use of separate telescopes that are widely spaced rather than on a single large mirror. While the interferometer does not capture as much light as a single mirror of the same diameter it can achieve the resolution. Interferometers first became practical in the mid-1970s and are now under development in several parts of the world. The NPOI interferometer utilizes many telescopes called elevator cans to create an optical resolution. |
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