Some say the reason most manhole covers are round is that a circle cannot fall through a smaller circular hole. Which of ...

Miniature architectural forms -- some no larger than viruses -- have been constructed through a revolutionary technique known as DNA origami. Now, scientists have expanded the capability of this ...

Mathematicians, freed in their imaginations from physical constraints, can conjure up descriptions of objects in many more dimensions than that. Points in a plane can be described with pairs of ...

Previous investigations of the neural code for complex object shape have focused on two-dimensional pattern representation. This may be the primary mode for object vision given its simplicity and ...

Join our daily and weekly newsletters for the latest updates and exclusive content on industry-leading AI coverage. Learn More State-of-the-art machine learning algorithms can extract two-dimensional ...

New work on the problem of “scissors congruence” explains when it’s possible to slice up one shape and reassemble it as another. If you have two flat paper shapes and a pair of scissors, can you cut ...

They can tile an indefinite plane without repeating a pattern. The search for such shapes began in the 1960s. Why does any of this matter? Find out. In April, an unusual discovery made news.

However, as can be seen from Figure 1 these simple calliper measures showed variance dependent upon the orientation of the particle in the 2-dimensional field of view. Figure 1. Example of the ...