Device for sending messages, using a mirror and the sun's rays - Crossword Clue

Crossword Clue Last Updated: 25/03/2023

Below are possible answers for the crossword clue Device for sending messages, using a mirror and the sun's rays.

10 letter answer(s) to device for sending messages, using a mirror and the sun's rays

HELIOGRAPH
  1. an apparatus for sending telegraphic messages by using a mirror to turn the sun's rays off and on
  2. signal by means of a mirror and the using the sun's rays

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