The explanation for the wide variety in formulation relates to usage.
Another explanation could relate to termination rituals that have often been seen in architectural construction.
One explanation for the unique habit of keeping the hands and upper body stiff relates to the stage.
Descartes' explanation here relates to his theory of vortices.
One explanation of this architectural choice relates to the area from which the Wylies arrived.
The following explanation relates to an asteroid which is in such an orbit around the Sun, and is also affected by the Earth.
An alternative explanation relates to the drowning of five children from the village in an icy pond in 1899.
This explanation relates to the acquisition of volatiles during accretion.
The explanation is a more philosophical one, and relates to a great modern social movement.
One possible explanation for these findings could relate to the fact that FN does not self-assemble.