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, ...

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 ...

Optical sensors are a broad class of device for detecting light intensity. This can be just a simple component for notifying when ambient light levels rise above or fall below a prescribed level, or a ...