A cylinder is a 3D shape with a circular cross section and a curved surface. It has no straight edges. To find the volume or surface area of a cylinder, calculate it in the same as a prism.

A pyramid is a 3D close 3D (three-dimensional) An object with width, height and depth, eg a cube. shape which can have differently shaped bases. Its sides are triangles which meet at the top.

ETRI creates 3D shapes from a flat surface using LEDs ... We plan to integrate large-area light sources and tiling technologies to expand to large 3D displays while enhancing cell resolution and ...

A new study proves for the first time that the ‘two-thirds scaling law’ applies to large animals as well as small ones, offering key lessons for conversation.

The soft surface may find applications as a teleoperated robot, dynamic 3D display, camouflage, exoskeleton or other smart, functional surfaces that can work in harsh, unpredictable environments." ...

Scientists from The Hebrew University of Jerusalem have created wood ink that can be extruded into flat wooden structures, self-morphing into complex 3D shapes as they dry and shrink.