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Fire is old. Electricity-- or at least it's control -- not so old, but I'm not sure I'd count it as simple. Making a functional battery or generator that doesn'
by abrax3141 7y ago
Fire is old. Electricity-- or at least it's control -- not so old, but I'm not sure I'd count it as simple. Making a functional battery or generator that doesn't just create or store trivial amounts energy is quite a challenge.
- stan_rogers 7y agoHuge powerful batteries are simple. It's making them small and lightweight that's the hard part.