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kleinbl00 · 4057 days ago · link · · parent · post: Edison’s revenge: The humble USB cable is part of an electrical revolution. It will make power supplies greener and cheaper
Yeah, it's inconsequential fluff misrepresenting itself as social commentary. DC has been used to power "larger" devices for years - every laptop made takes DC power. The internal bus of desktops has been DC since UNIVAC. Pushing USB out to 100w is a spec thing, not an "edison's revenge" thing. Edison wanted DC for long-distance power transmission because he was a monomaniac with zero scientific training. There are reasonable ways to do it but that wasn't what Edison was about. And behind all this power-over-USB crapola, there's still a half-wave rectified transformer somewhere.