Issue 49 of Whizz Pop Bang is all about the wonders of wheels, and one of our 10 awesomely amazing wheeled vehicles is the whacky Dynasphere! This was a single-wheeled vehicle built in 1930 but inspired by a sketch made by Leonardo da Vinci more than 400 years earlier. The vehicle could reach 48 km/h but was almost impossible to steer!
Check out the Dynasphere in action here: