new zealand has already given us lots of excitement with bungee jumping. now, it's the zorb's turn have you ever wondered what it would be like to roll down a hill at speeds of up to 30 mph inside a huge andrew akers wondered while he was looking through some drawings by leonardo da vinci,or so he says wherever the idea came from,andrew and ex-research scientist Dwane van der sluis began designing such a ball which they called a zorb