navigation factor
41international trade — Introduction economic transactions that are made between countries. Among the items commonly traded are consumer goods, such as television sets and clothing; capital goods, such as machinery; and raw materials and food. Other transactions… …
42Canal — Canals are artificial channels for water. There are two types of canals: water conveyance canals, which are used for the conveyance and delivery of water, and waterways, which are navigable transportation canals used for passage of goods and… …
43Slide rule — For other uses, see Slide rule (disambiguation). A typical ten inch student slide rule (Pickett N902 T simplex trig). The slide rule, also known colloquially as a slipstick,[1] is a mechanical analog computer. The slide rule is used primarily for …
44transportation — /trans peuhr tay sheuhn/, n. 1. the act of transporting. 2. the state of being transported. 3. the means of transport or conveyance. 4. the business of conveying people, goods, etc. 5. price of travel or transport by public conveyance; fare. 6.… …
45Computer keyboard — A key being pressed on a computer keyboard. In computing, a keyboard is a typewriter style keyboard, which uses an arrangement of buttons or keys, to act as mechanical levers or electronic switches. Following the decline of punch cards and paper… …
46Ship — A ship IPA|/ʃɪp/ audio|en us ship.ogg|Audio (US) is a large vessel that floats on water. Ships are generally distinguished from boats based on size. Ships may be found on lakes, seas, and rivers and they allow for a variety of activities, such as …
47Solar cell — A solar cell made from a monocrystalline silicon wafer …
48aerospace industry — Introduction assemblage of manufacturing concerns that deal with vehicular flight within and beyond the Earth s atmosphere. (The term aerospace is derived from the words aeronautics and spaceflight.) The aerospace industry is engaged in the …
49Backcountry snowboarding — is a unique sport that is rapidly growing in popularity. The sport of backcountry snowboarding is characterized by the fresh tracks and deep powder that only the slopes of a remote mountainside can offer. The sport is a completely separate… …
50Russia — /rush euh/, n. 1. Also called Russian Empire. Russian, Rossiya. a former empire in E Europe and N and W Asia: overthrown by the Russian Revolution 1917. Cap.: St. Petersburg (1703 1917). 2. See Union of Soviet Socialist Republics. 3. See Russian… …
