Why do arches work?

Related questions

1. Who built the Pont du Gard built?
2. Who owns the California Aqueduct?
3. What does the arch stand for?
4. What are aqueducts made of?
5. Why is the Pont du Gard famous?
6. What is an example of an aqueduct?
7. What were aqueducts made for?
8. How many aqueducts are there in the world?
9. Where did the word Aqueduct come from?
10. Why was Pont du Gard built?

Tags

1. #typically
2. #although
3. #series
4. #bridges
5. #horizontal
6. #structures
7. #arches
8. #today
9. #abutments
10. #either
11. #weight
12. #thrust
13. #viaduct
14. #bridge
15. #other
16. #partially
17. #restrained
18. #loads
19. #economical
20. #transferring