Search results
Results from the WOW.Com Content Network
Letter sheet. Opened up 1628 lettersheet showing folds, address and seal, with letter being written on the obverse. In philatelic terminology a letter sheet, often written lettersheet, is a sheet of paper that can be folded, usually sealed (most often with sealing wax in the 18th and 19th centuries), and mailed without the use of an envelope ...
Flight envelope is one of a number of related terms that are used in a similar fashion. It is perhaps the most common term because it is the oldest, first being used in the early days of test flight. It is closely related to more modern terms known as extra power and a doghouse plot which are different ways of describing the flight envelope of ...
3. Denomination. 4. Country name. A postage stamp is a small piece of paper issued by a post office, postal administration, or other authorized vendors to customers who pay postage (the cost involved in moving, insuring, or registering mail). Then the stamp is affixed to the face or address-side of any item of mail —an envelope or other ...
Envelope (mathematics) Construction of the envelope of a family of curves. In geometry, an envelope of a planar family of curves is a curve that is tangent to each member of the family at some point, and these points of tangency together form the whole envelope. Classically, a point on the envelope can be thought of as the intersection of two ...
Shield wall: the massed use of interconnected shields to form a wall in battle. Shield wall (fortification): the highest and thickest wall of a castle protecting the main assault approach. Shoot and scoot: a type of fire-and-movement tactic used by artillery to avoid counter-battery fire.
In January 2016, a Mumbai-based communications agency initiated a campaign against profanity and abusive language called "Gaali free India" (gaali is the Hindi word for profanity). Using creative ads, it called upon people to use swatch (clean) language on the lines of Swachh Bharat Mission for nationwide cleanliness. It further influenced ...
Life forms thrive in the deep Mariana Trench, and inside rocks up to 580 m (1,900 ft; 0.36 mi) below the sea floor under 2,590 m (8,500 ft; 1.61 mi) of ocean off the coast of the northwestern United States, and 2,400 m (7,900 ft; 1.5 mi) beneath the seabed off Japan.
Vitelline membrane. The vitelline membrane or vitelline envelope is a structure surrounding the outer surface of the plasma membrane of an ovum (the oolemma) or, in some animals (e.g., birds), the extracellular yolk and the oolemma. It is composed mostly of protein fibers, with protein receptors needed for sperm binding which, in turn, are ...