A 3D shape with all straight edges and flat faces is a polyhedron. Other 3D shapes with least one curved surface are not polyhedra. A 3D shape with regular polygonal faces, meeting at equal angles, is ...

Oppo, the known smartphone manufacturer, has recently patented a new smartwatch. This new wearable features a round 3D curved display along with a digital crown. It might be the next iteration of the ...

In the aeronautic and aerospace thin-walled structures, hole shape designs are very popular to achieve the weight reduction, structural reparation, cooling and other purposes and have important ...