A machine is a tool containing one or more parts that uses energy to perform an intended action. Machines are usually powered by mechanical, chemical, thermal, or electrical means, and are often motorized. Historically, a power tool also required moving parts to classify as a machine. However, the advent of electronics has led to the development of power tools without moving parts that are considered machines.[1]
A simple machine is a device that simply transforms the direction or magnitude of a force, but a large number of more complex machines exist. Examples include vehicles, electronic systems, molecular machines, computers, television, and radio.
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Od svega je najbitniji pravilan stav prema kriznoj situaciji, odnosno zadržavanje prisebnosti. Iskustva pokazuju da je racionalnim shvaćanjem preživljavanje moguće u svakoj, pa i naizgled najgoroj situaciji, kao i na svim područjima na Zemlji, od arktičkih uvjeta u tundri do beživotnih područja u pustinji......
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