Always one to push personal transportation to the limit, this is a video of engineer James Bruton (seen previously constructing a personal AT-AT walker) building an omni-directional bike that sits on two giant balls. It works beautifully. And speaking of giant balls– “Elephants?” NORTH ATLANTIC RIGHT WHALES. Up to 2,200-pounds! Mine don’t weigh anything near that but are still 30% of my body weight.