heliograph Urdu Meaning
Heliograph - Urdu Meaning and Translation of Heliograph (شمس نگار - ), Total 4 meanings for Heliograph , Roman Urdu Meaning for word Heliograph , Image/Illustration, English Definition and more.
شمس نگار
Shams nigaar
شمسی پیغام رساں
shamsi pegham rasan
فوٹو ہیلیو گراف
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شمسی نقش
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1. n. an apparatus for sending telegraphic messages by using a mirror to turn the sun's rays off and on
2. v. signal by means of a mirror and the using the sun's rays
A heliograph (Greek: Ἥλιος helios, meaning "sun", and γραφειν graphein, meaning "write") is a wireless solar telegraph that signals by flashes of sunlight (generally using Morse code) reflected by a mirror.
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