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"The medium is the message" is a phrase coined by the Canadian communication theorist Marshall McLuhan and the name of the first chapter [1] in his Understanding Media: The Extensions of Man, published in 1964. [2] [3] McLuhan proposes that a communication medium itself, not the messages it carries, should be the primary focus of study. [4]
Theory can be seen as a way to map the world and make it navigable; communication theory gives us tools to answer empirical, conceptual, or practical communication questions. [1] Communication is defined in both commonsense and specialized ways. Communication theory emphasizes its symbolic and social process aspects as seen from two ...
Many models of communication include the idea that a sender encodes a message and uses a channel to transmit it to a receiver. Noise may distort the message along the way. The receiver then decodes the message and gives some form of feedback. [1] Models of communication simplify or represent the process of communication.
The Shannon–Weaver model is one of the first models of communication. Initially published in the 1948 paper "A Mathematical Theory of Communication", it explains communication in terms of five basic components: a source, a transmitter, a channel, a receiver, and a destination. The source produces the original message.
The wave theory predicted that light waves could interfere with each other like sound waves (as noted around 1800 by Thomas Young). Young showed by means of a diffraction experiment that light behaved as waves. He also proposed that different colours were caused by different wavelengths of light and explained colour vision in terms of
The current scientific consensus is that faster-than-light communication is not possible, and to date it has not been achieved in any experiment. Superluminal communication other than possibly through wormholes is likely impossible [1] because, in a Lorentz-invariant theory, it could be used to transmit information into the past.
Harold Innis examined the rise and fall of ancient empires as a way of tracing the effects of communications media. He looked at media that led to the growth of an empire; those that sustained it during its periods of success, and then, the communications changes that hastened an empire's collapse.
Human communication can be defined as any Shared Symbolic Interaction. [6]Shared, because each communication process also requires a system of signification (the Code) as its necessary condition, and if the encoding is not known to all those who are involved in the communication process, there is no understanding and therefore fails the same notification.