Researchers found evidence that hydraulic systems might have been used to build Egypt's Step Pyramid of Djoser 4,500 years ago, revealing advanced technology.

Engineers Found Evidence of Hydraulics in an Ancient Pyramid, Solving a 4,500-Year-Old Mystery See how Egyptian engineers might have used water to shape history’s greatest monuments.

Can you spot the pattern to work out the answers to the powerful pyramid posers? Problem 5of Maths Week Scotland 2021's Daily Challenges.