Scientists from Mexico’s National Autonomous University have created the first three-dimensional image of the Popocatépetl ...

An 1851 ink-and-watercolor gift drawing titled A Type of Mother Hannah’s Pocket Handkerchief by Polly Jane Reed, a Shaker in New Lebanon, New York. Andrews Collection, Hancock Shaker Village, ...

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 ...

Abstract: Creating 3D shapes from 2D drawings is an important problem with applications in content creation for computer animation and virtual reality. We introduce a new sketch-based system, ...

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 ...

Valcamonica, situated in the Lombardy plain, has one of the world's greatest collections of prehistoric petroglyphs – more than 140,000 symbols and figures carved in the rock over a period of 8,000 ...

Drawpile is a drawing program that lets you draw, paint and animate together with others on the same canvas. It runs on Windows, Linux, macOS and Android. Take a look at the downloads page on drawpile ...

Ever felt like your artistic soul was trapped in this mouse-clicking and touchpad world? Now is the time to break free into the exciting world of graphic tablets. These nifty little devices are the ...

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 ...

Stop chasing the "magic pen." As a brand consultant, I've seen more bad ideas sketched with expensive tools than I care to count. The right pen isn't about price; it's about purpose. Here’s my ...

Ghana How did they get here? Topped their qualifying group with eight wins, a draw and one defeat in 10 matches. They clinched their place after a 1–0 win over Comoros. Ranked 72 in the world. What’s ...