Egypt, third millennium b.c. The Great Pyramid of Giza is both the oldest of the Seven Wonders and the only one still standing. Built by the pharaoh Khufu (reigned ca. 2551–2528 b.c.) to serve as his ...

The story of the highly skilled workers who helped build Egypt’s Great Pyramid is emerging from a papyrus cache unearthed at the world’s oldest harbor On a summer afternoon around 4,600 years ago, ...

Diane Costagliola is a researcher, librarian, instructor, and writer who has published articles on personal finance, home buying, and foreclosure. Investopedia / Laura Porter A double top is a bearish ...

Pattern formation is the developmental process by which cells acquire different identities, depending on their relative spatial positions within the embryo. Pattern formation ensures that tissues and ...

A central pattern generator (CPG) is a neuronal network in which interconnected excitatory and inhibitory neurons produce an oscillating, rhythmic output in the absence of sensory feedback. CPGs play ...

Here’s what you’ll learn when you read this story: The Pyramid of Menkaure, one of the three famous Pyramids of Giza, has long been suspected to have another entrance that looters would never be able ...

The Pyramids: Special Economic Vortex Zones of North America explores pyramidal structures throughout the continent. Here, the book's creator Ian James comments on ten of the weirdest and most ...