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TIL: The Big Dig, Boston's megaproject (1991–2007), rerouted I-93 into the O'Neill Tunnel, extended I-90 via the Ted Williams Tunnel, and added the Zakim Bridge and Rose Kennedy Greenway, transforming the city's infrastructure.

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vPbpK TIL that it is illegal to place the Philippine flag below a framed picture, as it is seen as disrespectful to a national symbol.
dVx9 TIL Just 3 years after the Civil War a man walked 1400 miles through the former Confederate states with a Union flag to disprove claims of lingering hatred.
4veJ TIL: Males receive, on average, 63% longer sentences than females for the exact same crime.
gr5x4 TIL Tapping or flicking a shaken can of soda do not have a significant effect on reducing foam when the can is opened. The key factors that affect soda explosiveness are temperature and time, not any special techniques like flicking or tapping.
PYDlw TIL There were lots of sketchy criticality accidents during the Manhattan Project and other early nuclear weapons research. E.g. One scientist died after dropping a Tungsten Carbide brick onto a Plutonium sphere which reflected more neutrons back onto it increasing the radiation