Nowadays, the words “innovation” and “creativity” get thrown around a lot in the business and academic world. But the road to making successful innovations is filled with challenges, opportunities taken or missed, and plenty strikes of luck. Often, people invent machines to face a recurrent problem. These inventions, in turn, spawn other inventions and innovation. These types of inventions have the most impact on society. Here’s looking at three inventions that have changed our lives forever.