*Nextek Power Systems, for example, has developed a system for delivering power ... | Hacker News

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Dylan16807 on Nov 18, 2011 | parent | context | favorite | on: From Edison’s Trunk, Direct Current Gets Another L...

Nextek Power Systems, for example, has developed a system for delivering power via DC to lights and motion sensors through a building’s metal frame, instead of through wires.

How.. what? A frame can provide one side of a circuit, but it can't provide both. The FAQ on their site talks about wire gauge and length. What is this line talking about?

mindslight on Nov 18, 2011 [–]

you just need to realize this article tells you more about journalism than electricity. then it makes perfect sense.

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