7. Late coal delivery was a cause of largest unintentional man-made explosion
In 1971, a Norwegian ship named SS Imo had to wait in the Halifax Harbour, Canada for two days for the coal to be delivered. By the time, a French ship called Mont Blanc was heading towards the same harbour. They tried to pass one another but it led to a massive explosion.
8. 12 million people lost their phone service because of a single 6
In 1991, customers of Baltimore, Washington, Pittsburgh , San Francisco and Los Angeles lost their phone service. It was because a Bell employee had typed ‘6’ instead of ‘d’ in the software that controls signal regulation, due to this all the companies lost control of the network.
Doesn’t it seem so stupid? And there might arise too many questions but this is how it was!