Why Tunnels Don’t Collapse If you ever wondered why tunnels don’t collapse here is a good video on it. Facebook Prev Article Next Article Engineering Checkout these cool gadgets... Related Posts How to Maneuver an 800-Ton Column Using Remote Controlled Robots One rotation of windmills powers a home for one day Nuclear Energy Explained: How does it work? The Future of Wind Power? – Kite Powered Systems Could Severe Turbulence Cause A Plane To Crash? Demolishing building one level at a time