I know the mug of tea next to my keyboard is a 3D object because my brain knows from experience that mugs usually are 3-dimensional, and it has learned to interpolate dimensions and distances from ...

This breakthrough enhances conventional 3D printing techniques by adding time as a dimension. When a time-variant figure 3D printed object can remain stationary, the 4D printed object dynamically ...

2D shapes include circle, triangle, square, rectangle. pentagon, hexagon.