Transformer
The transformer makes modern power transmission possible, changing voltages up or down with very little loss of power. Its development dates back to the early nineteenth century, when, in ...
Read more
Transformers
Transformers are responsible for transforming an input voltage into a different output voltage. When a portable CD player which runs on 3.5V is plugged into a car which has a 12V battery,...
Read more
Carpool lanes, like this one on a California freeway near the Westwood neighborhood in Los Angeles, were designed to encourage more people per car. (Corbis-Bettmann)
Transformers
A transform...
Read more
Transformer
Transformers
Transformers