Something that always bothered about The Jetsons.
George Jetson works for "Spacely Sprockets" and their main competitor was "Cogswell Cogs" and I can't recall seeing much of anything that needed sprockets or cogs. Seriously they have flying cars, live in a floating suburb and everything is push button. So why the hell are sprockets and cogs such a big industry in the future? OK so maybe Rosie the Robot may have needed some cogs but more than likely her limbs would be hydraulic.
