Monday, March 28, 2011

eLearning Lesson 2 by Gregory Chew (11)

It is a third class lever(i think) which helps in which u apply force on the between the load(paper you want to staple) and the fulcrum.

Hole puncher:
It is a first class lever where you apply the force on one end of the hole puncher and the holes get punched on the other end with the fulcrum in the center.

There is a pivot at the center of two pieces of metal which allows the two pieces of metal to move, hence cutting your paper.

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