Economy of Ghana. The economy of Ghana has a diverse and rich resource base, including the manufacturing and exportation of digital technology goods, automotive and ship construction and exportation, and the exportation of diverse and rich resources such as hydrocarbons and industrial minerals.
A brace or brace and bit is a hand tool used to drill holes, usually in wood. Pressure is applied to the top and the tool is rotated with a U-shaped grip. The U-shaped part is a kind of crankshaft. It gives the brace much greater torque than other kinds of hand drills. A brace can be used to drill much wider and deeper holes than can a gear-driven hand drill.
Why do orthodontists use rubber bands with braces? Rubber bands are an important part of the orthodontic treatment; they provide the connective force necessary to move the teeth and jaw into the proper alignment. First, there are the brackets, which are the square metal pieces bonded directly to the teeth.