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 making jump rings, use 10- to 18-gauge wire (2.5 to 1.3 mm). Bracelet and necklace wire components are generally made out of wire that is 16-, 18- or 20-gauge (1.3 to 0.8 mm). Earring wires are usually made out of 18- or 20-gauge wire (1.0 to 0.8 mm).
A jewelry wire gauge is a measure of the wire gauge or diameter of wire used in jewelry making. Wire is defined today as a single, usually cylindrical, elongated strand of drawn metal.