A cylinder is a circular prism close circular prism (cylinder)A three-dimensional figure having two parallel bases that are circles equal in terms of radius, diameter, circumference and surface area ...

A circle is a two-dimensional figure that is defined by a set of points that are all the same distance from a given point, known as the center. It is considered a type of line with a collection of ...

Humankind is energy hungry. As our civilization industrialized over the last couple centuries, global energy consumption has spiked more than twentyfold, with no end in sight. When demand outstrips ...