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Subjects>Social Studies>Archaeology

What is helograph?

Updated: 4/27/2024

Wiki User

∙ 14y ago

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A heliograph is a signaling device that uses reflected sunlight to transmit messages. It typically consists of a mirror that is adjusted to reflect sunlight towards a specific target, such as another mirror or observer, to convey encoded messages. This form of communication was commonly used over long distances before the advent of more sophisticated technology like radios.

∙ 4d ago

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