this post was submitted on 17 Apr 2024
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What's that one about? I'm not going back to his channel to watch it.
The basic premise is "if you have a lightbulb and a switch separated by a light-second long wire, how long does it take the lightbulb to light up?" The real answer is obviously one second, but if the lightbulb is near the switch, it will receive a very small amount of charge from the electromagnetic field of the wire as soon as you turn it on, so technically it'll receive like 1% of the power immediately and 99% once the electricity makes it down the wire.