Roller Skate Trucks How Is It Possible That Skateboards, Roller Skates, Trains, Cars, Trucks And Bicycles Can All Be Related?

How is it possible that skateboards, roller skates, trains, cars, trucks and bicycles can all be related? - roller skate trucks

It makes no sense ...

Yes, eat all the wheels, but some others do not. Some are very large, while others are tiny. Some make noise, others are quiet. Some can lead to many people, others only one. A place of pollution, others not. Some are aesthetically pleasing, others are ugly

How are these different forms of transport, may be related. All they have in common are the wheels?

However, each originating from a common ancestor "- The Wagon - and none of them really seems to cars.

It is today's lesson in the logic of man. Enjoy.