What is the power?
The power is the force applied by the fingers.
What is the weight?
The weight is the paper, or other substance, to be cut by the scissors.
Can scissors be made very strong?
Yes; some scissors are made so strong that they are used for cutting iron, tin, and zinc.
What other useful instruments are made upon the same principle as the scissors?
Such instruments as nippers, pincers, tweezers, and blacksmith’s tongs.
What is the second kind of lever?
It is where the weight is between the power and the fulcrum, as is shown in [Fig. 47].