Search

...Introduction - Most people have suffered from influenza (flu) at some time in their lives, so you probably have personal experience or a good idea of the symptoms and progression of the disease. However, influenza is actually one of the world’s most serious diseases. The pandemic of flu that occurred in 1918, immediately following the First World War, is thought to have...

...Introduction - The purpose of astronomical images is straightforward: by recording images of particular regions of the sky, we can identify what objects are out there in the Universe and where they are located. Imaging the Universe enables us to understand its structure and contents. Images provide a wider context within which astronomers can use tools like spectroscopy...

...Introduction - The oceans cover more than 70 per cent of our planet. In this free course you will learn about the depths of the oceans and the properties of the water that fills them, what drives the ocean circulation and how the oceans influence our climate. This OpenLearn course is an adapted extract from the Open University course S206 Environmental science...The...