Bridges vs. Tunnels

Brains On! Science podcast for kids

By American Public Media

Bridges vs. Tunnels

Wednesday, 26 August

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!

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