Volume 2 : 3 ratio of the volumes of the sphere and cylinder is credited to Archimedes. The volume of a sphere is the integral of an infinite number of infinitesimally small circular disks of thickness "dx". The calculation for the volume of a sphere with center 0 and radius "r" is as follows. The surface area of the circular disk is formula_10. The radius of the circular disks, defined such that the x-axis cuts perpendicularly through them, is or where y or z can be taken to represent the radius of a disk at a particular x value. Using y
X-Men Mutants. New flagship titles such as "Amazing X-Men" and "All-New X-Men" were launched. The latter featured the original five X-Men members who were brought to the present day. In 2013, for the 50th anniversary of the X-Men, "Battle of the Atom" was published which involved members of both X-Men schools trying to decide what to do about the time-displaced original X-Men. In 2014, Wolverine was killed off in the "Death of Wolverine" story arc. In 2015, as part of "All-New, All-Different Marvel", three team books were launched: the second volume of "All-New X-Men", the fourth volume of "Uncanny X-Men" and