What are 2D shapes? Explore the properties of 2D shapes ... words you can use to describe the position and movement of an object.

Three-dimensional objects, such as cubes or pyramids, can now be printed using techniques that are inherently two-dimensional. Researchers from North Carolina State University have developed a new ...

However, what if software could reasonably extrapolate a 3D shape from a 2D image? That's what researchers ... using freely available stock 3D models of everyday objects, such as furniture ...

The technique, which cleverly demonstrates the link between 2D and 3D geometry, could be used by engineers to create self-assembling prototypes (Science 315 1116). It’s quite easy to see how simple 3D ...