Historically, explanation has been associated with causation: to explain an event or phenomenon is to identify its cause. But with the growth and development of philosophy of science in the 20th century, the concept of explanation began to receive more rigorous and specific analysis.
For jewelry applications, gauges 12-28 are most common. The size of wire is defined by one of two measuring systems. The American wire gauge (AWG) and the Standard wire gauge (SWG) systems.
Small bench work anvils can be used for jewelry but are clumsy for delicate work. However it is impossible to forge anything larger than fine wire on a little 5 oz. (150g) jewelers anvil and difficult to use a large 200 pound (90kg) forging anvil for jewelry work. Each task is best performed using the proper size tool.