schizoidman@lemmy.ml to Technology@lemmy.worldEnglish · 1 year agoResearchers discover battery-free technology which harvests power from radio and Wi-Fi signals for low-powered deviceswww.tomshardware.comexternal-linkmessage-square16fedilinkarrow-up1189arrow-down122file-text
arrow-up1167arrow-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 · 1 year agomessage-square16fedilinkfile-text
minus-squareVaryk@sh.itjust.workslinkfedilinkEnglisharrow-up80·edit-21 year 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-squarejubilationtcornpone@sh.itjust.workslinkfedilinkEnglisharrow-up5·1 year agoI remember making a crystal diode radio with my dad as a kid. You can still buy kits for those.
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
I remember making a crystal diode radio with my dad as a kid. You can still buy kits for those.
From Radio Shack?!