Number of mathematicians who laboriously pored through a Philips atlas with a highlighter pen: 1.
Number of mathematicians who scraped Facebook posts for people talking about low bridges: 1.
Number of viewers who thought "Network Rail will have a list of all low railway bridges." and went off to read it: 1.
Data found from Network Rail's list in a couple of minutes, as soon as I realized that there was sometimes a space between the feet and the inches in the old measurements. (-:
https://youtube.com/v/kH_bSvf7EVA?t=808&lc=UgzI-T7hmKCGdPC-4e14AaABAg
@bytebro
#StandUpMaths #NetworkRail #LowBridges #metric #RoadSigns











