schizoidman@lemmy.ml to Technology@lemmy.worldEnglish · 2 months agoResearchers discover battery-free technology which harvests power from radio and Wi-Fi signals for low-powered deviceswww.tomshardware.comexternal-linkmessage-square14fedilinkarrow-up11arrow-down10file-textcross-posted to: technology@lemmy.ml
arrow-up11arrow-down1external-linkResearchers discover battery-free technology which harvests power from radio and Wi-Fi signals for low-powered deviceswww.tomshardware.comschizoidman@lemmy.ml to Technology@lemmy.worldEnglish · 2 months agomessage-square14fedilinkfile-textcross-posted to: technology@lemmy.ml
minus-squareVaryk@sh.itjust.workslinkfedilinkEnglisharrow-up0·edit-22 months agoIn no way is this a discovery. This is what crystal diode radios are from the '40s. Some guy built one in Japan, it’s basically just a thousand transceivers in a box hooked up to a USB port harvesting radio/wifi signals. Here’s a guy using them to make light: It’s super cool, but not a discovery. https://youtu.be/_pm2tLN6KOQ?si=ppEv2PkdK_MHFrw6
minus-squareBjörn Tantau@swg-empire.delinkfedilinkEnglisharrow-up1·2 months agoA friend of mine was working on a car chassis and that thing suddenly started to receive radio. You could faintly hear it coming from the chassis and not from somewhere else. We thought we were going crazy. Touching the chassis made it go away.
In no way is this a discovery.
This is what crystal diode radios are from the '40s.
Some guy built one in Japan, it’s basically just a thousand transceivers in a box hooked up to a USB port harvesting radio/wifi signals.
Here’s a guy using them to make light:
It’s super cool, but not a discovery.
https://youtu.be/_pm2tLN6KOQ?si=ppEv2PkdK_MHFrw6
A friend of mine was working on a car chassis and that thing suddenly started to receive radio. You could faintly hear it coming from the chassis and not from somewhere else. We thought we were going crazy. Touching the chassis made it go away.