James has been writing about technology for years but has loved it since the early 90s. While his main areas of expertise are maker tools -- 3D printers, vinyl cutters, paper printers, and laser ...

Editor’s Note: December 10, 2025: We’ve reviewed these selections to ensure they are available and competitively priced. To further update our coverage, with a focus on ease-of-use, we’ve called in ...

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 ...

People typically perceive the motion and depth of objects correctly even during walking or running, when visual inputs change markedly. The authors show that this accurate perception is achieved by ...

Enceladus, one of Saturn's small icy moons, spans just 300 miles (500 kilometers) — yet despite its modest size, it has become a star in the search for life beyond Earth. From cracks near its south ...

Abstract: Dissolved gas analysis (DGA) is an important online monitoring technique for power transformers. When there are some faults in oil-immersed transformers, insulation materials will decompose ...

3D mammograms can find more cancers than 2D mammograms alone. 3D mammograms are better at finding tumors in dense breast tissue. Combining 3D and 2D mammograms gives a higher radiation dose. There are ...