deletions | additions       diff --git a/Introduction.tex b/Introduction.tex  new file mode 100644  index 0000000..f6101c1  --- /dev/null  +++ b/Introduction.tex 
...
\section{Introduction}  A prominent feature in relativistic physics is the Minkowski metric tensor \begin{equation}  \nu = \begin{bmatrix}  1 & 0 & 0 & 0 \\  0 & -1 & 0 & 0\\  0 & 0 & -1 & 0\\  0 & 0 & 0 & -1  \end{bmatrix}  \end{equation}  On probing where this comes from it was postulated that the matrix was the 'Real' (non-quaternion) part of the outer product of two unit quaternions $Q= w + xi + yj +zk$, \begin{bmatrix}  \nu = Q \otimes Q =Re(\begin{bmatrix}  1 & i & j & k \\  i & -1 & k & -j\\  j & -k & -1 & i\\  k & j & -i & -1  \end{bmatrix})  \end{equation}  The implications of carrying through the physics made with this tensor without taking the real part were considered. The creation of an electromagnetic tensor is considered.