Structural engineering is a branch of civil engineering that involves the application of the laws of physics, mathematics and empirical knowledge to safely design the ‘bones’ and load bearing elements of man made structures. Modern day structural engineering provides a large and detailed body of knowledge that can accurately predict the performance of different shapes and materials used in structures to resist loads and stresses on structures. The principles of structural engineering were used thousands of years ago when building structures like the pyramids in Egypt or the Acropolis in Greece.