I am a physicist by training and a materials scientist by inclination. I am attracted to materials science by the links it draws between the behaviour of real materials - things we experience and use in our everyday macroscopic lives - and what happens in the microscopic world of atoms and electrons. Materials science involves the application of fundamental theories of physics to solve real-world problems. As a bonus, these problems are often extremely complex, involving a hierarchy of processes across a range of length and time scales. To model them we need to use a broad range of tools, each with its own strengths and weaknesses.