Bridges: How Engineers Cross the Impossible
Beam, arch, truss, and suspension: four ideas that carry the world's traffic over rivers, gorges, and bays. Learn which forces pull on every cable and why triangles never wobble.
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- Question 1 of 3
The simplest bridge of all, a stiff deck resting on a support at each end, is called a...Tap an answer
Multiple Choice
- Question 2 · unlocks after question 1
- Question 3 · unlocks after question 2
- The main cables of a suspension bridge are constantly being stretched. Engineers call that force...Multiple Choice
- Truss bridges are built from triangles because a triangle keeps its shape under load.True / False
- Why is the Golden Gate Bridge in San Francisco painted a reddish-orange color?Multiple Choice
- London's Tower Bridge does something most bridges cannot. What?Multiple Choice
- Every stone bridge built by the ancient Romans collapsed centuries ago.True / False
- The Millau Viaduct, a road bridge taller than the Eiffel Tower, soars over a valley in which country?Multiple Choice
- For the very longest crossings over deep water, which bridge type holds the record spans?Multiple Choice
- Which curved shape lets a stone bridge carry heavy loads without bending? (one word)Type Answer
- A bridge whose deck hangs from long steel cables strung over towers is called a ... bridge. (one word)Type Answer
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