20 November 2018

World of Standards ~ Alternative Choices!

Power plugs around the world... https://old.reddit.com/r/MapPorn/comments/9yt202/power_plugs_around_the_world/ Railway track gauges... https://en.wikipedia.org/wiki/Track_gauge Left vs Right-hand Driving... https://en.wikipedia.org/wiki/Left-_and_right-hand_traffic

No comments: