Blog of news and innovation projects
To raise the Great Pyramid of Giza, the Egyptians transported enormous stone blocks on boats on the Nile, mounted them on sledges and then wet the sand along the route to the pyramid to make them easier to slide. But how they hauled them up this pharaonic monument is still an unknown. Here we explore how science and technology are helping to reveal how it was constructed.
While skyscrapers make the most of vertical space, they also pose significant safety and economic challenges. China has banned the construction of buildings taller than 500 metres. We investigate the extent to which building height can become an insurmountable handicap.