For example, if the solution were only applied to the edges, only they would shrink when heated, and the disc would form a bowl-shaped object. But more complex “chemical origami” would need an ...

2D shapes can be found printed in a book or you can draw them on a piece of paper. ... A square has 4 sides and 4 vertices. ... For example, look at these two shapes and count the sides on each.

North Carolina State University researchers have developed a method for having 2D patterns made of plastic self-assemble into 3D objects using a heat lamp and printer ink.