iPhone 6 Case Which Harvests Electricity from the Air (techcrunch.com) 8 points by simas 11y ago ↗ HN
[–] Johnythree 11y ago ↗ Perpetual Motion at last!The Phone transmits radio energy which is converted back into DC power which the phone then uses to transmit radio energy.Of course harvesting the radiated power blocks the ability of the phone to communicate, but still... [–] kenrikm 11y ago ↗ You could always just put it in.. like.. Airplane mode and call it a day.
[–] matznerd 11y ago ↗ Why didn't the judges ask about interference? How can the antenna determine what RF is ambient and what RF is being used in transmission? Seems pretty cool. 30% gain in battery would be game changing...
3 comments
[ 3.5 ms ] story [ 19.5 ms ] threadThe Phone transmits radio energy which is converted back into DC power which the phone then uses to transmit radio energy.
Of course harvesting the radiated power blocks the ability of the phone to communicate, but still...