Someone said hey, that's cool and all, but I need to move things online. They noticed that borders and rock rolled downhill. And with a little creative engineering they created the wheel. They attached it carry out a platform that became fabulous airplanes. So what if a place was really far away and a wagon and boat would take too long? Well, the right brother had a great idea. So you wouldn't necessity is a mother of invention and technology is one of those catalyst of invention