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What other sci fi technology is being lost on us now? I always that the complexity of the local-battery-powered copper-cable telephone exchange system was bonke
by whycome 9mo ago
What other sci fi technology is being lost on us now? I always that the complexity of the local-battery-powered copper-cable telephone exchange system was bonkers. It was the backbone for all our landline calls.
- Findecanor 9mo agoThe telephone system also powered the phone, and often worked when the power grid did not.