During the early stages of life, organs do not just appear in their final form. They take shape through a process of ...

Scientists develop fully biobased, 4D-printable shape memory polymers from plant-derived acrylates, enabling tunable, ...

A polygon is a 2D shape with straight sides that meet at vertices. Polygons have names that show the number of sides they have. A three-dimensional (3D) shape is a solid shape. 3D shapes have ...

Now, we’re the 2D being, except we’re experiencing a 3D cross section of a 4D world. To a 4D observer, the world looks totally normal, with all trees, caves, lava flows and bodies of water ...

A research team at the University of Galway has created a new way to 4D bioprint tissues that can change shape in a controlled way—just like real tissues do as they form. This discovery brings ...

Shapes with 4 sides Explore four-sided shapes looking at straight lines, curved lines and 2D shapes. What are 2D shapes? Explore the properties of 2D shapes from one-sided circles to the eight ...