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*TTRPGs General
What technological advancements led to the telegraph?
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<blockquote data-quote="Mishihari Lord" data-source="post: 2796984" data-attributes="member: 128"><p>Resistivity of materials</p><p>metal resistivity,</p><p>nano-ohm-meter</p><p>silver 14.71</p><p>copper 15.80</p><p>gold 20.11</p><p>aluminum 25.00</p><p>zinc 54.55</p><p>iron 87.10</p><p>lead 193.00</p><p>mercury 983.96</p><p></p><p>Silver is best for conductivity, then copper, gold, and so on. Other metals work too, but the previously mentioned ones are the best conductors, and as you go to less conductive metals the possible range between telegraph stations becomes smaller due to lost power to electrical resistance.</p><p></p><p>Other factors to consider include mechanical strength if you want suspended wires (gold is not very strong), corrosion (iron will rust), theft (someone will want those gold wires), manufacturability (the ability to extract aluminum is a _very_ recent innovation), and cost. Silver and copper are probably your best bets. You could also give whatever properties you want to mithral, adamantite, and so on. Mithril as a superconduxtor might be fun.</p></blockquote><p></p>
[QUOTE="Mishihari Lord, post: 2796984, member: 128"] Resistivity of materials metal resistivity, nano-ohm-meter silver 14.71 copper 15.80 gold 20.11 aluminum 25.00 zinc 54.55 iron 87.10 lead 193.00 mercury 983.96 Silver is best for conductivity, then copper, gold, and so on. Other metals work too, but the previously mentioned ones are the best conductors, and as you go to less conductive metals the possible range between telegraph stations becomes smaller due to lost power to electrical resistance. Other factors to consider include mechanical strength if you want suspended wires (gold is not very strong), corrosion (iron will rust), theft (someone will want those gold wires), manufacturability (the ability to extract aluminum is a _very_ recent innovation), and cost. Silver and copper are probably your best bets. You could also give whatever properties you want to mithral, adamantite, and so on. Mithril as a superconduxtor might be fun. [/QUOTE]
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What technological advancements led to the telegraph?
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