A shape-shifting, rotating skyscraper is set for Dubai by 2020The 80-storey tower will constantly be changing shape as residents choose to rotate their homes, according to architectural firm Dynamic Group. The 80-storey Dynamic Tower will be the world’s first skyscraper made up of separate rotatin ...

Concrete is one of the most common construction materials used in the world. It is cheap, strong and easy to make. Concrete allows cities to build skyscrapers, builds levees to hold back flood waters, and bridges to help roads stretch across the land. Concrete technology dates back to the ancient Ro ...