Lever.
What is a lever?
A Lever is a rod or bar of some kind used for raising weights.
Of what are levers made?
Levers are made of any solid substance, such as wood and iron.
When a spoon is balanced on a cup, as in [Fig. 40], what may the spoon be called?
The spoon may then be called a lever.
Upon what does the spoon rest?
It rests upon the edge of the cup.