Two-dimensional (2D) shapes are completely flat. They cannot be picked up. 2D shapes can be found printed in a book or you can draw them on a piece of paper. 2D shapes have sides and corners (also ...

The star-like "kagome" structure of the molecules in this 2D metal-organic material (shown in an STM image on the left and a non-contact AFM image on the right) produces strong electronic interactions ...

Titch and Ted learn about geometry on their day out at the beach. Titch and Ted have had a lovely day at the beach, solving problems with 2D and 3D shapes and using the vocabulary of directions, ...

In 1884, Edwin Abbott wrote the novel Flatland: A Romance in Many Dimensions as a satire of Victorian hierarchy. He imagined a world that existed only in two dimensions, where the beings are 2D ...