- published: 27 Apr 2012
- views: 135833
A simple machine is a mechanical device that changes the direction or magnitude of a force. In general, they can be defined as the simplest mechanisms that provide mechanical advantage (also called leverage).
Usually the term refers to the six classical simple machines which were defined by Renaissance scientists:
A simple machine is an elementary device that has a specific movement (often called a mechanism), which can be combined with other devices and movements to form a machine. Thus simple machines are considered to be the "building blocks" of more complicated machines. This analytical view of machines as decomposable into simple machines first arose in the Renaissance as a neoclassical amplification of ancient Greek texts on technology, and is still a central part of engineering in today's age of applied science. For example, wheels, levers, and pulleys are all used in the mechanism of a bicycle. Between the simple machines and complex assemblies, several intermediate classes can be defined, which may be termed "compound machines" or "machine elements". The mechanical advantage of a compound machine is simply the product of the mechanical advantages of the simple machines of which it is composed.
Actors: Roy Boulting (producer), Thorley Walters (actor), Basil Dignam (actor), Ian Wilson (actor), Ian Bannen (actor), Donald Pleasence (actor), Geoffrey Bayldon (actor), Kenneth Griffith (actor), Raymond Huntley (actor), Sam Kydd (actor), Murray Melvin (actor), Spike Milligan (actor), Brian Oulton (actor), Peter Cushing (actor), Roy Boulting (writer),
Plot: A government team researching cures for plague find their results put on the Official Secrets list. One of their number is so incensed by this that he lets the maimed and jealous companion of a female colleague draw him into what, technically, could be a treasonable act.
Keywords: based-on-novel, independent-film, scientific-research, scientist, spy, traitor