Track_Shovel@slrpnk.net to Microblog Memes@lemmy.worldEnglish · 10 days agoReligious symbolsslrpnk.netimagemessage-square86linkfedilinkarrow-up1832
arrow-up1832imageReligious symbolsslrpnk.netTrack_Shovel@slrpnk.net to Microblog Memes@lemmy.worldEnglish · 10 days agomessage-square86linkfedilink
minus-squareLastYearsIrritant@sopuli.xyzlinkfedilinkEnglisharrow-up3·9 days agoYou can laser etch/temper stainless steel to put a QR code that’d last longer than any QR code would be practical. Heating stainless to different temperatures will make it change color enough to make a QR code.
You can laser etch/temper stainless steel to put a QR code that’d last longer than any QR code would be practical.
Heating stainless to different temperatures will make it change color enough to make a QR code.