The volume of a 3D shape is the amount of space inside it. Volume is measured in cubic units such as cm³ and m³. The volume, or capacity, of liquids is measured in millilitres or litres. The surface ...

Djoser's pyramid has a stepped appearance. It is an extension of the mound found in mastaba tombs and is usually interpreted as a symbolic mound of creation, but can also be read as a stairway to ...

Scientists have been left baffled after two mysterious air-filled spaces were discovered behind one of Egypt's great pyramids ...