As a flat spiral groove creates area in an otherwise linear record album, likewise volume in matter is generated by conical and spherical spirals that commonly became known as the " Wave ".
2.
A rhumb line ( also known as a loxodrome or " spherical spiral " ) is the curve on a sphere traced by a ship with constant revolutions, with the separation between them decreasing as the curve approaches either of the poles, unlike an Archimedean spiral which maintains uniform line-spacing regardless of radius.