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A comment on Demo of Short-Range Wireless Power Transfer. Parent comment

Re:Demo of Short-Range Wireless Power Transfer by mirimir on Thursday February 16, 2017 @08:40PM (#13665245)
If the penetration depth is << 1 mm, I can't imagine that ocular heating would be an issue. And I'd expect that power levels would be too low to heat metal. But maybe so.
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Re:Demo of Short-Range Wireless Power Transfer by sandworm101 on Thursday February 16, 2017 @09:16PM (#13665424)
But any sparks from the metal coulf cause fires. Not much power needed for a spark.
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