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And Then There Were None vocabulary
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heliograph
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► definition
Definition:1. A picture taken by heliography; a photograph.2. An instrument for taking photographs of the sun.3. An apparatus for telegraphing by means of the sun's rays. See Heliotrope*, 3.*HELIOTROPE, 3. (Geodesy & Signal Service)An instrument for making signals to an observer at a distance, by means of the sun's rays thrown from a mirror.Noah Webster. Webster's Unabridged Dictionary (1913)
photo: By derivative work: Macchess (talk)Heliograph.jpg: US National Oceanic and Atmospheric Administration - Heliograph.jpg, Public Domain, https://commons.wikimedia.org/w/index.php?curid=4293673
► uses
Uses:
"We'll try heliographing to-day with a mirror from the highest point of the island. [...]"
Agatha Christie. And Then There Were None. p.166 (1939)
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I taught Frank in his leisure moments how to work a heliograph. For that purpose I fastened a slanting piece of looking-glass to my own bed-head, and stationed my brother with a second mirror on the summit of the mountain, in a good position for observing the lake of fire and the smoke-stacks in its centre.Grant Allen. The White Man's Foot
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The opera windows in the rear also gave back the sun, heliographing it viciously.
Stephen King. The Stand (1990)
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'You are well escorted,' Scobie said. The destoyers and the corvettes sat around like dogs: signal flags rippled and a helio flashed.
Graham Greene. The Heart of the Matter, p.101 (1948)
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