Tootfinder

When I moved out of London over a decade ago, there was some move towards having wifi availability in the deep tube lines, but there were still plenty of places where smartphones became dumbphones when you were in the tunnels.
This article is a very interesting and non-technical run through of how over the last few years they finally solved the problem of putting 21st-century wifi technology into 19th-century train tunnels.
#London #tube