Can you think of any two machines that seems simple but are not . List at least two and explain why they are Not actually Simple

1. Cars : We Might think that Making Cars is very easy, Many people thing that making a car just needs a base, some wheels, doors, etc. but it’s not the case! Making cars is very difficult as you need to attach wires to the proper ports, inserting proper seats and tires that suit all the environments including very hot or cold ones, etc.

2. Skateboards : As for Skateboards, People think that it’s just a wooden plank with 2 wheels on which you ride, but here too it’s not the case, here too we need to test and attach the proper wheels that are strong enough to hold our weight and then we need to attach them to a sharply and properly chiseled wooden piece that is attached properly and s covered with lavers of the same chiseled wood properly.