How Do Bridges Stay Up Without Support?

Examples

1. A triangle made of sticks stays strong even when you push on it.
2. A bridge looks like it's floating, but it uses triangles to stay up.
3. You can walk across a bridge because it pushes back as hard as you step forward.

More examples

See also

• How To Use An Abacus?
• How Does Researchers find evidence of Neanderthal dentistry Work?
• What is Temperatures between 60°C and 75°C?
• What is 9 calories per gram?
• How Does France’s Darkest Hours: When the SS Publicly Executed Resistance Fighters Work?

Show more

Discussion [hide]