heliograph

2 articles

Sunshine Recorders: Measuring Solar Duration and Radiation

Sunshine Recorders: Measuring Solar Duration and Radiation A sunshine recorder, also known as a heliograph, is a specialized instrument designed to track the amount of sunshine received a...

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Telegraphy: The Evolution of Long-Distance Communication

Telegraphy: The Evolution of Long-Distance Communication Telegraphy is the process of transmitting messages over long distances using symbolic codes known to both the sender and the recip...

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