This story appears in the January/February 2017 issue of National Geographic History magazine. Amelia Blanford Edwards was one of a stream of European travelers drawn to see the wonders of Egypt at ...

Ponzi and pyramid schemes both take advantage of unsuspecting individuals by promising extraordinary returns in exchange for their money. With Ponzi schemes, investors give money to a portfolio ...

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, ...

Solid-state lasers are lasers made from crystalline materials. The very first laser used ruby as a solid-state active region in 1960, and there are now hundreds of known alternatives. The most common ...

Quantum fluids and solids are substances in which the interaction between the constituent atoms or molecules is governed by the laws of quantum mechanics. The properties of these materials are ...