Bridges vs. Tunnels - a podcast by American Public Media

We’ve gotten a lot of questions about bridges and tunnels: How do bridges stay up? How are tunnels built? How do they build bridges over water? How do they put tunnels underwater? To answer these questions we’re staging a little friendly competition: bridges vs. tunnels!

Further episodes of Brains On! Science podcast for kids

Further podcasts by American Public Media

Website of American Public Media