Computer models are everywhere and we use them to gain an understanding of the world and make predictions about the future, such as the spread of diseases, whether a rocket will get into orbit, and even whether it will rain tomorrow. In this special documentary, Adam Murphy discovers what a model is and why we need them, how scientists develop models in the first place, and how computer scientists can help to strip out the bugs to make them work better, faster and more efficiently... Like this podcast? Please help us by supporting the Naked Scientists