How many of the 20th century’s greatest engineering achievements will you use today? A car? Computer? Telephone? Explore the list of the top 20 achievements and learn how engineering shaped a century and changed the world.
(from : National Academy of Engineering)
1. 2. Automobile
3. Airplane
4. Water Supply and Distribution
5. Electronics
8. Computers
9. Telephone
10. Air Conditioning and Refrigeration
11. Highways
12. Spacecraft
13. Internet
14. Imaging