Scientists used a 3D-printing approach to pattern hydrophobic barriers inside hydrophilic filter paper. These barriers, ...

• 3D paper snowflakes are surprisingly easy to make. • Just accordion-fold the paper first before cutting a pattern. • Then carefully unfold and tape the edges together. Nearly everyone has made paper ...

Astech (Alloy Steel Technologies Inc.) is a sand-casting foundry that produces castings in steel, stainless steel, alloy steel, and gray iron. The company’s specialties include the production of steel ...