From the abstract: "Experiments show that Poynting vector is just a mathematical definition in the DC case. Since it does not form real energy flow, there is no transmission of electromagnetic energy flow from the exterior to the interior of a metal wire. Therefore, DC power is transmitted entirely within the metal wire." Full article available here: ( <<Predatory publisher link deleted>> - click on the PDF link). The translation from Chinese isn't perfect, but the ideas come across clearly enough. Thoughts?