The Method of Mechanical Theorems convenient to use a little bit of coordinate geometry. If a sphere of radius 1 is placed with its center at "x" = 1, the vertical cross sectional radius formula_2 at any "x" between 0 and 2 is given by the following formula: The mass of this cross section, for purposes of balancing on a lever, is proportional to the area: Archimedes then considered rotating the triangular region between "y" = 0 and "y" = "x" and "x" = "2" on the "x"-"y" plane around the "x"-axis, to form a cone. The cross section of this cone is a circle
X-Men: Pryde of the X-Men pilot effectively marked the end of the Marvel animated universe created by DePatie-Freleng Enterprises/Marvel Productions, which began with "Fantastic Four" (1978) and continued with "Spider-Woman" (1979), "Spider-Man" (1981), "Spider-Man and His Amazing Friends" (1981) and "The Incredible Hulk" (1982). The X-Men themselves had previously guest starred in several episodes of "Spider-Man and His Amazing Friends", although that particular series isn't necessarily in the same continuity as "Pryde of the X-Men". Narrated by X-Men co-creator Stan Lee, "Pryde of the X-Men" stars Professor X and the X-Men who were known as Cyclops, Storm, Nightcrawler, Colossus, Wolverine, Kitty Pryde, and Dazzler saving