Gallery
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Parabolic antenna - the 70m antenna at Goldstone
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Helical antenna
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A Yagi-Uda antenna. From left to right, the elements mounted on the boom are called the reflector, driven element, and director. The reflector is easily identified as being a bit (5%) longer than the driven element, and the director a bit (5%) shorter.
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A giant phased-array radar in Alaska
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Holmdel Horn Antenna in Holmdel, New Jersey Built to support the Echo satellite communication program, it was later used in experiments that revealed the cosmic background radiation permeating the universe.
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Voyager 2 spacecraft. The HGA (a parabolic antenna) is the large bowl-shaped object.
Read more about this topic: High-gain Antenna
Famous quotes containing the word gallery:
“Each morning the manager of this gallery substituted some new picture, distinguished by more brilliant or harmonious coloring, for the old upon the walls.”
—Henry David Thoreau (1817–1862)
“I should like to have seen a gallery of coronation beauties, at Westminster Abbey, confronted for a moment by this band of Island girls; their stiffness, formality, and affectation contrasted with the artless vivacity and unconcealed natural graces of these savage maidens. It would be the Venus de’ Medici placed beside a milliner’s doll.”
—Herman Melville (1819–1891)
“It doesn’t matter that your painting is small. Kopecks are also small, but when a lot are put together they make a ruble. Each painting displayed in a gallery and each good book that makes it into a library, no matter how small they may be, serves a great cause: accretion of the national wealth.”
—Anton Pavlovich Chekhov (1860–1904)