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.
The connection between the unicorn and purity became more defined in the 13th century, where it became seen as a symbol of devotion to a pure lady. Soon the idea of the unicorn as a symbol of pure, chaste love became popular. The unicorn also has connections to other forms of purity as well-its horn, made of a material known as alicorn, was thought to be able to combat poison and disease.