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...system (brain and spinal cord). Sometimes, the aspirin-like and codeine/morphine-like drugs are combined into one remedy, for example co-codamol and co-proxamol. Local anaesthetics. For the time being, we will concentrate on aspirin, to illustrate the development of drugs and how they are able to achieve their effects...Pain and aspirin: 3 The aspirin story - As long ago...

...system of calculation. The word comes from Latin, in which ‘calculus’ means ‘stone’ – the link is in the use of stones for counting. The calculus of infinitesimals became so overwhelmingly important compared to other types of calculus that the word ‘calculus’, used alone, is now always understood to refer to it. An ‘infinitesimal’ was regarded as an...

...think about the zoom a camera can offer you. However, whilst the structure is enlarged, it might become blurry and you can’t see the details. The ability of being able to separate two neighbouring objects in an image is described with the term resolution (i.e. the two objects can be resolved; they do not appear as a single object). You might be familiar with the concept...

...system of units based on multiples of ten...Maths is intimately entwined with science and technology, whether it is used to analyse data collected on plants in the Amazon rainforest, to calculate the trajectory of a comet or design a bridge to connect two countries. This means that science and technology go hand-in-hand with maths, and that a firm grasp of maths is...