What Is the Visible Portion of the Electromagnetic Spectrum

question 287

Short Answer

What is the visible portion of the electromagnetic spectrum?

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Definitions:

Telegraph Lines

Historically significant communication system that transmitted electrical signals over wires between distant locations to convey messages.

Electrical Pulses

Rapid bursts of electrical energy that are used in various applications, from medical treatments to electronic devices.

Keypad

A set of keys on a device or machine, arranged in a systematic way, that are pressed to input data or operate a system.

McLuhan

Marshall McLuhan, a media theorist known for coining the expressions "the medium is the message" and "global village," focusing on how media affects societal structures and individual perceptions.