China is building the world’s largest airport, the Beijing Daxing International Aiport, to serve the Jing-Jin-Ji megalopolis.
South-to-North Water Transfer Project: The huge populations filling China’s northern megacities have a shortage of the single most necessary resource for life: water. To solve that problem, the Chinese will soon be moving 44.8 billion cubic meters of fresh water each year from the wetter South to the dryer North.
Mexico’s vast capital — Ciudad de México, the largest city in the Americas — is threatened by a severe water crisis.
America is changing how it gets its energy, and coal is losing out.
Many structures built by ancient Romans around 2,000 years ago are still standing, and some are still in excellent condition. Over the last decade, researchers have come discover the Romans’ secret concrete recipe that has maintained so many of its now-ancient buildings.
Just because something is difficult doesn’t mean it’s impossible. Over the past centuries, archaeologists, historians, and engineers have reconstructed a great deal of the technology and science used to build the Egyptian pyramids. This week we look at ancient Egyptian mathematics, building techniques, tools, and culture to reconstruct the Great Pyramid’s construction.