What’s a telegraph wire | Hack And Heat
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Morse Code & Telegraph: Invention & Samuel Morse - HISTORY | HISTORY
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berthis on Instagram: "FACT OF THE DAY 🗓️ Wire spools were pivotal in the 19th-century development of the telegraph, enabling the rapid unspooling of miles of copper wire across continents, but their oversized wooden construction often led to a quirky hazard: spontaneous combustion from the heat generated by friction during high-speed winding. This “fire spool” phenomenon prompted early innovations in ventilated designs and fire-retardant treatments for the industry."
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