Hacker News new | ask | show | jobs
by flir 1203 days ago
Oh - and a story that actually happened, in a similar vein: https://en.wikipedia.org/wiki/The_Thing_(listening_device)
1 comments

The cool thing about The Thing is that it's not really an energy harvesting device, and has no active components. It is a purely passive modulator of a signal being transferred over the air!