The names given to the various lines of a tooth on a gear-wheel are as follows:
In Figure 233, A is the face and B the flank of a tooth, while C is the point, and D the root of the tooth; E is the height or depth, and F the breadth. P P is the ... Read more of Drawing Gear Wheels at How to Draw.ca
Pen and paper Piece of tin foil
Write the name of the person, first and last name, on a piece of paper.
Then write down everything this person does that you would like them to stop.
Wrap the piece of paper in a piece of tin foil. Place it in the freezer.
If you decide you no longer need the spell, toss the foil in a fire saying:
My wish is no more, this person is free.
Undo this spell without hurting thee.