Search results
Results from the WOW.Com Content Network
The English word helicopter is adapted from the French word hélicoptère, coined by Gustave Ponton d'Amécourt in 1861, which originates from the Greek helix (ἕλιξ), genitive helikos (ἕλῐκος), "helix, spiral, whirl, convolution" [3] and pteron (πτερόν) "wing".
Where useful, Sanskrit root forms are provided using the symbol √. For Tocharian, the stem is given. For Hittite, either the third-person singular present indicative or the stem is given. In place of Latin, an Oscan or Umbrian cognate is occasionally given when no corresponding Latin cognate exists.
Abrasion strips on helicopter rotor blades are made of metal, often titanium or nickel, which are very hard, but less hard than sand. When a helicopter flies low to the ground in desert environments, sand striking the rotor blade can cause erosion. At night, sand hitting the metal abrasion strip causes a visible corona or halo around the rotor ...
Root Meaning in English Origin language Etymology (root origin) ... anthelix, antihelix, helicine, helicograph, helicoid, helicopter, helicospore, helix Hell-[12]
The following is an alphabetical list of Greek and Latin roots, stems, and prefixes commonly used in the English language from H to O. See also the lists from A to G and from P to Z . Some of those used in medicine and medical technology are not listed here but instead in the entry for List of medical roots, suffixes and prefixes .
A collision between an American Airlines passenger jet and an Army helicopter at Ronald Reagan Washington National Airport near Washington, D.C, killed 67 people, including more than a dozen figure skaters. The plane was carrying 60 passengers and four crew members at the time of the crash late Wednesday. Three soldiers were on board the ...
Jo Ellis, a Black Hawk pilot with the Virginia Army National Guard who is transgender, was falsely identified as the captain flying the U.S. military helicopter with an American Airlines jet in ...
Washout reduces the angle of incidence from root to tip, thereby causing a lower angle of attack at the tips Washout is clearly visible in this image of a CF-18 Hornet. Note the angle of the Sidewinder missile on the wingtip rail as compared to the angle of attack of the fuselage. The Hornet has approximately 4 degrees of washout.