| horn |
In telecommunications, the term horn has the following meanings: * In radio transmission, an open-ended waveguide, of increasing cross-sectional area, which radiates directly in a desired direction or feeds a reflector that forms a desired beam. ** Note 1: Horns may have one or more expansion curves, i.e., longitudinal cross sections, such as elliptical, conical, hyperbolic, or parabolic curves, and not necessarily the same expansion curve in each (E-plane and H-plane) cross section. ...
출처: en.wikipedia.org/wiki/Horn_(telecommunications)
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| horse chestnut |
The genus Aesculus comprises about 20-25 species of deciduous trees and shrubs native to the temperate northern hemisphere, with 7-10 species native to North America and 13-15 species native in Eurasia; there are also several natural hybrids. ...
출처: en.wikipedia.org/wiki/Horse_chestnut
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| horseshoe crab |
The horseshoe crab (Limulus polyphemus), also known as king crab, is an arthropod that is more closely related to spiders than crabs. They are most commonly found in the Gulf of Mexico and along the northern Atlantic coast. A Japanese variant (Tachypleus tridentatus) is found in the Seto Inland Sea, but is considered an endangered species through loss of habitat. They can grow up to 20 inches (51 cm), on a diet of mollusks, worms, and other invertebrates. ...
출처: en.wikipedia.org/wiki/Horseshoe_crab
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| horizons |
The horizon is the line that separates earth from sky. More precisely, it is the line that divides all of the directions you can possibly look into, into two categories: those which intersect the Earth, and those which do not. At many locations, the true horizon is obscured by trees, buildings, mountains, etc. The resulting intersection of earth and sky is instead known as the visible horizon. However, if you are on a ship at sea, the true horizon is strikingly apparent. ...
출처: en.wikipedia.org/wiki/Horizons
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| horizons |
Horizons was an attraction at Walt Disney World's EPCOT theme park in Orlando Florida. Its corporate sponsor was General Electric (which means they helped to finance the ride in turn for advertising opportunities) until 1993. It was a dark ride which explored some visions of the 21st century. Riders first experienced a 1950s perception of the future with android servants, then more modern ideas such as arid-zone agriculture, ocean colonization, and space colonization. ...
출처: en.wikipedia.org/wiki/Horizons_(Disney)
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