Top 20 Technological Screw-Ups Of The 20th Century

In a century crammed to bursting with screw-ups, it's difficult to choose a mere twenty that stand out. Inevitably and unfairly, several hundred thousand worthy achievements were left out.

The people mentioned here had reasons - in many cases very good reasons - for doing what they did. These screw-ups can serve as fodder for thought, argument, or pure, unabashed wonder.