We all have them, these brilliant moments of absolute certainty and clarity were you can picture a world changing invention sure to bring you success, fame and fortune, only to find that its already been made by someone else. However if you are one of the lucky few to come up with an idea first, there is often a simple scenario that led you to these often amazing discoveries.
We decided to take a look at the Eureka! Moments of some of the most famous and influential inventors in history. From Velcro to Post-it-notes, there are some remarkable (and often accidental) stories behind these everyday items ingrained into our lives.
Hopefully reading through these might inspire you to have a Eureka moment of your own!