Walrus - ορισμός. Τι είναι το Walrus
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Τι (ποιος) είναι Walrus - ορισμός

HEAVY-LIFT HYBRID AIRSHIP PROPOSED BY DARPA
WALRUS HULA; WALRUS

walrus         
  • Tooth
  • Skull with tusks
  • Native Alaskan woman dresses walrus skin
  • Skeleton
  • alt=Photo of five walruses on rocky shore
  • alt=Photo of two walruses in shallow water facing shore
  • alt=Photo of several walruses, with prominently displayed white pairs of tusks
  • alt=Photo of walrus in ice-covered sea.
  • Skull without tusk
  • alt=Photo of walrus head in profile showing one eye, nose, tusks, and "mustache"
  • Kamogawa Seaworld]], Japan
  • Walrus cows and yearlings (short tusks)
  • Walrus, labeled ''Ros marus piscis'', is depicted in а 16th-century map of [[Scandinavia]] (the [[Carta Marina]])
  • A herd of walruses on [[Northbrook Island]], [[Franz Josef Land]], Russia
¦ noun a large marine mammal related to the eared seals, having two large downward-pointing tusks and found in the Arctic Ocean. [Odobenus rosmarus.]
Origin
C18: prob. from Du. walrus, perh. by an inversion of elements (influenced by walvis 'whale-fish') of ON hrosshvalr 'horse-whale'.
Walrus         
  • Tooth
  • Skull with tusks
  • Native Alaskan woman dresses walrus skin
  • Skeleton
  • alt=Photo of five walruses on rocky shore
  • alt=Photo of two walruses in shallow water facing shore
  • alt=Photo of several walruses, with prominently displayed white pairs of tusks
  • alt=Photo of walrus in ice-covered sea.
  • Skull without tusk
  • alt=Photo of walrus head in profile showing one eye, nose, tusks, and "mustache"
  • Kamogawa Seaworld]], Japan
  • Walrus cows and yearlings (short tusks)
  • Walrus, labeled ''Ros marus piscis'', is depicted in а 16th-century map of [[Scandinavia]] (the [[Carta Marina]])
  • A herd of walruses on [[Northbrook Island]], [[Franz Josef Land]], Russia
·noun A very large marine mammal (Trichecus rosmarus) of the Seal family, native of the Arctic Ocean. The male has long and powerful tusks descending from the upper jaw. It uses these in procuring food and in fighting. It is hunted for its oil, ivory, and skin. It feeds largely on mollusks. Called also morse.
walrus         
  • Tooth
  • Skull with tusks
  • Native Alaskan woman dresses walrus skin
  • Skeleton
  • alt=Photo of five walruses on rocky shore
  • alt=Photo of two walruses in shallow water facing shore
  • alt=Photo of several walruses, with prominently displayed white pairs of tusks
  • alt=Photo of walrus in ice-covered sea.
  • Skull without tusk
  • alt=Photo of walrus head in profile showing one eye, nose, tusks, and "mustache"
  • Kamogawa Seaworld]], Japan
  • Walrus cows and yearlings (short tusks)
  • Walrus, labeled ''Ros marus piscis'', is depicted in а 16th-century map of [[Scandinavia]] (the [[Carta Marina]])
  • A herd of walruses on [[Northbrook Island]], [[Franz Josef Land]], Russia
n.
Morse, sea-horse, sea-cow (Trichechus rosmarus).

Βικιπαίδεια

Walrus HULA

The Walrus HULA (Hybrid Ultra Large Aircraft) project was a DARPA-funded experiment to create an airship capable of traveling up to 12,000 nautical miles (about 22,000 km) in range, while carrying 500-1000 tons of air cargo. In distinct contrast to earlier generation airships, the Walrus HULA would be a heavier-than-air vehicle and would generate lift through a combination of aerodynamics, thrust vectoring, and gas buoyancy generation and management.

DARPA said advances in envelope and hull materials, buoyancy and lift control, drag reduction and propulsion combined to make this concept feasible. Technologies to be investigated in the initial study phase included vacuum/air buoyancy compensator tanks, which provide buoyancy control without ballast, and electrostatic atmospheric ion propulsion.

The WALRUS could potentially expand and speed the strategic airlift capability of the United States substantially while simultaneously reducing costs. A smaller scale demonstration was scheduled for 2008, when a small scale version of the WALRUS designed to carry only the capacity of a C-130 Hercules (i.e., 18,000 kg or about 40,000 lbs) was expected to fly.

The project was cancelled in 2010.

Παραδείγματα από το σώμα κειμένου για Walrus
1. One sketch is of the walrus from Lewis Carroll‘s The Walrus and the Carpenter, believed to have been the inspiration for the band‘s song I Am the Walrus.
2. Though drops in walrus population haven‘t been documented, scientists and Natives are afraid the ripple effects of climate change could thin walrus numbers.
3. Helen Chythlook, executive director of the Bristol Bay Native Association‘s Qayassiq Walrus Commission, said that Alaska Natives have the right to conduct the walrus hunt in privacy.
4. "That‘s a walrus scapula," Chuck Heath says brightly.
5. Walrus ivory and bone are transformed into crafts and artwork.