Five Massive Screw-ups That Wouldn’t Have Happened If We All Just Used the Metric System

Almost every country in the world uses metric measurements. Every country except for the United States that is. It’s usually not a big problem. But there have been some close calls throughout history when people used metric instead of imperial, or vice versa with disastrous results.

Source: Five Massive Screw-ups That Wouldn’t Have Happened If We All Just Used the Metric System