Track_Shovel@slrpnk.net to Microblog Memes@lemmy.worldEnglish · 8 days agoReligious symbolsslrpnk.netimagemessage-square85linkfedilinkarrow-up1828arrow-down111
arrow-up1817arrow-down1imageReligious symbolsslrpnk.netTrack_Shovel@slrpnk.net to Microblog Memes@lemmy.worldEnglish · 8 days agomessage-square85linkfedilink
minus-squareLastYearsIrritant@sopuli.xyzlinkfedilinkEnglisharrow-up3·7 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.