Tom Scott: Things You Might Not Know

Why Do London's Manholes Keep Exploding? (2018x15)

Air date: Oct 29, 2018

Every month or so, somewhere in London, a manhole explodes. It's so common that it doesn't make the news unless it's spectacular or someone gets injured. Here's why, complete with gratuitous pyrotechnics. Filmed by Perspective Pictures Pyrotechnics by Paul at Darkstar Pyrotechnics News articles: https://www.telegraph.co.uk/finance/newsbysector/energy/11169183/Explosion-in-city-street.html https://www.standard.co.uk/news/london/pavement-explodes-yards-from-pedestrians-and-cars-in-old-street-a35