Damn impressive when you realize how hard it is to produce any power that way.
Standard hub dynamo will put out 6 volts, 3 watts.
Random 4k tv I found online has a listed typical consumption of 57 watts.
You'd need twenty of these bikes hooked up to some kind of rectifier that can convert the power into something usable.
A hub dynamo is designed to take as little power out of the wheels as possible to not slow down there bike too much.
If you put a bigger dynamo on a stationary bike you can get much more power out of it, between 50 to 100W.
If you harvest all the power output from the cranks you get a lot more than 3 watts.
Advanced sports cyclists actually generally measure their output in terms of watts, because of how independent that variable is from other conditions affecting the performance of a cyclist (wind/temperature/aerodynamic drag all have high impacts on final speed).
I think producing 57 watts is probably realistic for a long time for even an untrained cyclist, actually. 57 watts seems kind of low to me, though, and is likely an example of a particularly low energy consumption device.
Hidden spider is >!on the remote!<
Just as context, despite being ridiculously over-dramatized (the music and editing is oh my god levels of eye roll), here's a really cool video about it: https://inv.nadeko.net/watch?v=S4O5voOCqAQ
OK, this one was sneaky. Cheating even!
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