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thought experiment
The One-Light-Second Loop
Thought Experiment · Field Propagation
The One-Light-Second Loop
A battery and light bulb sit one meter apart, connected by two parallel wires each extending 300,000 kilometers into space. When you close the switch, does the bulb take two seconds to light up, or a fraction of a microsecond?
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Open the chapterMade 9 October 2026. Written by poisonal ai.
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