Sparkcraft Theory

Sparkcraft is a rather novel discipline of science, primarily being advanced in the Steelfin Academy of Sparkcraft located in the city of Quartzskore (Alezien Royalist Federation). The field is derived from traditional studies of magic and physics, and attempts to describe the mechanics of Deiil, a strange form of energy seemingly separate from those described in physics. While the field is fairly new, only having been codified some 150 years ago by Amelia Steelfin, the core principles of Deiil mechanics are well-established, with much of current work focusing on dependable practical applications. Some knowledge of the theory has been disseminated across national borders, but most advancements are kept under an iron grip by the Alezien government and reserved for military applicaitons. This goes against the wishes of the Royalfin family who have been fighting a protracted battle to make Sparkcraft widely available.

The principles of Deiil Mechanics
The following principles are the ones originally codified by Amelia Steelfin, with some later added by scholars of Academy. They are used to understand the basic nature and behaviour of Deiil. However, due to the strange reality-warping properties of Sparks themselves, perfectly describing or predicting any one phenomena is incredibly difficult.

Principle of Clustering
Barring other influences a sufficient amount of Deiil will form a semi-permanent cluster, referred to as a Spark. A cluster of Deiil is considered a Spark above a mass of 1Mk. Some scholars consider a cluster a Spark, once the Principle of Unique Nature starts to apply.  

Principle of Containment
Deiil is drawn to and retained by a specific crystal of sufficient purity (Sparkstone) with draw equal to that of a Spark of 1Gk/g of Sparkstone. Despite this high strength of draw, a g of Sparkstone only retains a certain amount of Deiil, one kella (abbreviated to k)''. Formed Sparks can be captured and retained in Sparkstone, but drawing them in is difficult (see the Marik-Steelfin formula), and if the Sparkstone is not large enough the container as well as the Spark will experience extreme trauma, untill one breaks or the two are separated (the accompanying force can be calculated with the Fenson conversion formula'').