Impedance matching–What does a mountain bicycle has in common with a transformer

As a cyclist and a transformer user, can’t help to notice the similarity of the two. So below is the picture of a mountain-bicycle and transformer taken from my favourite source Wikipedia.


To compare them, look at the table of comparison below:

A Bicycle	A Transformer
number of “teeth” of sprocket	number of winding
front sprocket	primary winding
rear sprocket	secondary winding
gear chain	transformer core

now, isn’t this amazing?


To understand sprocket, visit http://en.wikipedia.org/wiki/Sprocket

Pictures from :

http://en.wikipedia.org/wiki/Bicycle

http://en.wikipedia.org/wiki/Transformer