Study links Great Pyramid’s design to earthquake resistance (opens in new tab)

A new study in Scientific Reports says Egypt’s Great Pyramid of Giza has structural and geotechnical features that help explain why it has avoided severe earthquake damage for about 4,600 years. Researchers led by Asem Salama used seismometers to measure ambient vibrations at 37 points inside and around the pyramid, including internal chambers, building blocks and nearby ground. The measurements found that much of the pyramid naturally vibrates at about 2.0 to 2.6 hertz, while the surrounding...