Search results
Results from the WOW.Com Content Network
An echelon formation (/ ˈ ɛ ʃ əl ɒ n, ˈ eɪ ʃ l ɒ̃ /) [1] is a (usually military) formation in which its units are arranged diagonally. Each unit is stationed behind and to the right (a "right echelon"), or behind and to the left ("left echelon"), of the unit ahead.
AAW An acronym for anti-aircraft warfare. aback (of a sail) Filled by the wind on the opposite side to the one normally used to move the vessel forward.On a square-rigged ship, any of the square sails can be braced round to be aback, the purpose of which may be to reduce speed (such as when a ship-of-the-line is keeping station with others), to heave to, or to assist moving the ship's head ...
En echelon veins can be parallel or subparallel, closely-spaced, overlapping or step-like minor structural features in rock. These step-like features can be faults, or tension fractures, that are oblique to the overall structural trend. They originate as tension fractures that are parallel to the major stress orientation, σ 1, in a shear zone.
1. Sign in to Desktop Gold. 2. Click the Settings button at the top. 3. Click Mail on the left side. 4. Click the Spell Check tab. 5. Click Add after typing in a word and it will be added to your personal dictionary.
ECHELON (Also known as Echelont), originally a secret government code name, is a surveillance program (signals intelligence/SIGINT collection and analysis network) operated by the five signatory states to the UKUSA Security Agreement: [1] Australia, Canada, New Zealand, the United Kingdom and the United States, also known as the Five Eyes.
The term echelon comes from the French échelon ("level" or step of a ladder), and refers to the fact that the nonzero entries of a matrix in row echelon form look like an inverted staircase. For square matrices , an upper triangular matrix with nonzero entries on the diagonal is in row echelon form, and a matrix in row echelon form is (weakly ...
The following is a handy reference for editors, listing various common spelling differences between national varieties of English. Please note: If you are not familiar with a spelling, please do some research before changing it – it may be your misunderstanding rather than a mistake, especially in the case of American and British English spelling differences.
The concept of a coarsely-ruled grating used at grazing angles was discovered by Albert Michelson in 1898, [1] where he referred to it as an "echelon". However, it was not until 1923 that echelle spectrometers began to take on their characteristic form, in which the high-resolution grating is used in tandem with a crossed low-dispersion grating.