irradiatedMB to TechNews · 1 year ago[HN] Why Japan Has Blue Traffic Lights Instead of Greenwww.rd.comexternal-linkmessage-square0fedilinkarrow-up14arrow-down10file-text
arrow-up14arrow-down1external-link[HN] Why Japan Has Blue Traffic Lights Instead of Greenwww.rd.comirradiatedMB to TechNews · 1 year agomessage-square0fedilinkfile-text