Stuff You Should Know


Society & Culture

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How do landfills work? How do mosquitos work? Join Josh and Chuck as they explore the Stuff You Should Know about everything from genes to the Galapagos in this podcast from HowStuffWorks.com.

How Underwater Tunnels Work

December 12th, 2013

Episode 634 of 951 episodes

It's a pretty amazing feat to dig a tunnel beneath a body of water that's big enough (and safe enough) to drive a train through. While humans have been digging underwater tunnels for thousands of years, it wasn't until the late 19th century that it became viable on a large scale. In this episode, Chuck and Josh explore the ins and outs of the engineering triumph that is digging below water.