Two-dimensional (2D) shapes are completely flat. 2D shapes can be found printed in a book or on a website. 2D shapes have sides and corners. A rectangle has 4 straight sides and 4 corners.

Laid flat on a table, ... Just as the side of a 3-D shape is made of a 2-D polygon, the “sides” of a 4-D shape are made of 3-D polyhedra that mathematicians call cells.

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.

In their paper, titled "Creating Furniture-Scale Deployable Objects with a Computer-Controlled Sewing Machine," they describe a collection of functional flat-to-shape artifacts they created with ...

What’s outside this “flat” bubble of our universe is anyone’s guess. This shape supports the idea of a cosmos that expands forever.

Pasta shapes resembling animals are one thing, and replicating shapes of astronauts and space quite another! This year marks the 50th anniversary of the moon landing, on July 20, and, 28 years ago ...

For 50 years, scientists believed that schools of fish would save the most energy by swimming in flat diamond formations.

Researchers have designed 3-D printed mesh-like structures that morph from flat layers into predetermined shapes, such as a human face, in response to changes in ambient temperature.

The future of flatpack furniture could be here. A new technique turns wood shavings into 3D printer ink to make objects that start off as damp, flat sheets and then twist and warp into shape as ...

Oct 01, 2019: 3-D printed mesh-like structures morph from flat layers into predetermined shapes (Nanowerk News) Researchers at MIT and elsewhere have designed 3-D printed mesh-like structures that ...

Two-dimensional (2D) shapes are completely flat. 2D shapes can be found printed in a book or on a website. 2D shapes have sides and corners. A rectangle has 4 straight sides and 4 corners.