For thirty plus years I've been wishing the USA would invest in mechanical battery technology. Unlike chemical batteries, flywheel batteries don't wear out and are extremely efficient. As far as I can tell the only drawback is they take more engineering to build. Really ?
So uh duh ? If that is true then all we need to do is invest in micromachine manufacturing technology and we can have zero emission cars that run for a hundred years. Seems like an obvious choice to me. Are you listening China ?
https://en.wikipedia.org/wiki/Flywheel_energy_storage
https://www.youtube.com/results?search_query=mechanical+flywheel+energy+storage
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