The pyramids may have been built using a sophisticated hydraulic system, according to a new study in Egypt. Evidence of ancient Egyptians using water pressure to lift stone blocks was discovered at ...

The Great Pyramid has always invited audacious explanations, from alien architects to supernatural levitation. Now a cluster of new engineering studies is pushing aside the fringe ideas and replacing ...

The Great Pyramid of Giza—the largest of Egypt’s pyramids—consists of about 2.3 million limestone blocks. The smallest of these weigh two tons, while the largest weigh over 60. History says laborers ...

Color illustrations, including front cover. Hidden ramps may solve the mystery of the Great Pyramid's construction. https://siris-libraries.si.edu/ipac20/ipac.jsp ...