The kinetics of tantalum nitridation is charaterised by two stages. In a first stage, the formation of Î²-TaN 0.05 species leads to a strong attenuation of the metallic tantalum signal. During the second stage, Î²-TaN 0.05 transforms into Î³-Ta 2 N and cubic/hexagonal TaN species.
The Grangerson Sheperson feud is symbolic of the civil war. The Shepersons would represent the north and the Grangerfords would represent the south. In the novel the Shepersons win. This is similar because this is the exact outsome of the civil war.
Quick Answer. Horseshoes are symbols of good luck for a number of reasons, including that they can attach to walls using seven nails, are made by blacksmiths and are believed to ward off evil spirits. Horseshoes are creations of blacksmiths, and blacksmithing was once considered a lucrative and prosperous trade.