These clever hacks will help your kids estimate the number of jelly beans in a jar, leaves on a tree, and more.

Long the titan of prep schools in Los Angeles, with a reputation as an Ivy League feeder, Harvard-Westlake has seen the ...

Meta's work made headlines and raised a possibility once considered pure fantasy: that AI could soon outperform the world's best mathematicians by cracking math's marquee "unsolvable" problems en ...

Journal Editorial Report: The week's best and worst from Kim Strassel, Jason Riley and Dan Henninger. Remember when the University of California kicked off a trend by eliminating the SAT test as an ...

Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. Since 3D printers debuted in the 1980s, the devices have been used ...

The rise of the consumer 3D printer has yielded amazing devices for designers, engineers, hobbyists, tinkerers, and schools alike. I've been reviewing 3D printers for PCMag since the first widely ...

More affordable than ever, 3D printers are booming for personal, professional, and educational use. We've been testing them for over a decade and are here to help you find the right option. Since 2004 ...

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 ...

Was a new regional power, once thought of as a bloodthirsty invading force, actually a catalyst for ancient Egypt’s most prosperous era? Egypt’s carefully recorded lists of rulers run pharaoh after ...

3D reconstruction is the process of generating a computer model of the 3D (3-dimensional) appearance of an object from a set of two-dimensional images. It is common in computer vision and medicine ...

The annals of history are filled with tales of great leaders who have left their mark on the world, shaping the course of human events through their actions, decisions, and vision. From conquerors who ...