Unlike the Egyptian pyramid Mr. Alvarez studied, which is made of solid granite blocks, the Pyramid of the Sun is an irregularly shaped mass of volcanic rubble and earth. So the scientists had to go ...

The Physical Activity Pyramid is a useful model for illustrating how each type of activity contributes to the development of health, wellness, and physical fitness. The pyramid has five different ...

Recent scans of the Giza pyramid complex have revealed intriguing anomalies that could potentially indicate previously ...

Over a century after a British archaeologist noted a blocked passageway in the ruins of Sahura’s Pyramid in Egypt and suggested it might lead to additional rooms, a team of Egyptian and German ...