The world as we know it with all the modern stuff started as hobby projects. Made from stuff we already knew these people are something other new feature was useful. We call this kind of people inventors. Soon after the invention came the big boys a specific invention in large numbers and thereby reproduce the massesservants.
Again the day there is still plenty to find. The question: What more can you invent today? Can you give the best answer? In addition, there are also people who publish their inventions. On instructables.com show people their own inventions with manual. On this continues growing channel you will find pictures,moving images and the manual for a specific invention to create it by yourself.