heliograph Meaning and Definition
شمس نگار
Shams nigaar
شمسی پیغام رساں
shamsi pegham rasan
فوٹو ہیلیو گراف
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شمسی نقش
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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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