Greatest Engineering Achievements of the 20th Century

How many of the 20th century’s greatest engineering achievements do you use today?  A car?  Computer?  Telephone?  Explore the National Academy of Engineering’s list of the top 20 achievements and learn how engineering shaped a century and changed the world.

20.  High-performance Materials

19.  Nuclear Technologies

18.  Laser and Fiber Optics

17.  Petroleum and Petrochemical Technologies

16.  Health Technologies

15.  Household Appliances

14.  Imaging

13.  Internet

12.  Spacecraft

11.  Highways

10.  Air Conditioning and Refrigeration

9.   Telephone

8.   Computers

7.   Agricultural Mechanization

6.   Radio and Television

5.   Electronics

4.   Water Supply and Distribution

3.   Airplane

2.   Automobile

1.   Electrification