The Uses of Irrationality: Paper Sizes and the Golden Ratio

Tuesday, 11 January 2011 - 1:00pm
Museum of London


Is there anything mathematically interesting about the paper sizes we use? We will see that their range of sizes has special features that facilitates their use in Xerox machines. The standard US Letter system of sizes is different and creates problems when you want to reduce copies in size. These examples will lead us towards the special properties of certain mathematical ratios in maths, science and art.