#OnThisDay 1924: The 'pips' (aka the Greenwich Time Signal) began, soon to become an iconic part of radio's soundscape. Find out more about their interesting history here: https://www.bbc.com/historyofthebbc/anniversaries/february/the-pips/ | BBC Archive

Victorian London, a global hub of trade and immense wealth, choked on its own success as chaotic traffic gridlocked its streets, hindering business and future growth. The citys development demanded a solution, and railway engineer John Peake Knights innovation—a grand semaphore signal outside Parliament—was seen as a valuable investment in public safety, a new technology representing the peak of British enterprise and a brilliant opportunity for order. Installed in December 1868, this manually o

General Railway Signal Upper-Quadrant Semaphore Operating at Willow Creek RR