Greatest Engineering Achievements of the 20th Century
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How many of the 20th century's greatest engineering achievements will you use today? A car? Computer? Telephone? Explore our list of the top 20 achievements and learn how engineering shaped a century and changed the world.

1. Electrification
2. Automobile
3. Airplane
4. Water Supply and Distribution
5. Electronics
6. Radio and Television
7. Agricultural Mechanization
8. Computers
9. Telephone
10. Air Conditioning
and Refrigeration
11. Highways
12. Spacecraft
13. Internet
14. Imaging
15. Household Appliances
16. Health Technologies
17. Petroleum and
Petrochemical Technologies
18. Laser and Fiber Optics
19. Nuclear Technologies
20. High-performance Materials

Engineering for You Video Contest 2 - NAE Grand Challenges for Engineering

The NAE has outlined 14 game-changing opportunities for the 21st century called the Grand Challenges for Engineering. We want you to select at least one of them and in 1-2 minutes show us how engineering will create a more sustainable, healthy, secure and/or joyous world in the future! The Grand Prize video will win $25,000!

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