In this month's Christmassy episode of Wrong, But Useful, @reflectivemaths and I discuss: Number of the podcast: 9 Shout outs to: @aap03102 (Chris Smith) for his maths newsletter @mathistopheles (Thomas Oléron Evans) and @fryrsquared (Hannah Fry) for sending me a copy of their book @chalkdustmag for the lovely card @fryrsquared – The Joy of Data on BBC four Mathematics exhibition at the Science Museum “Did you know that the incircle of a 3-4-5 triangle has radius 1?” (Via @arithmaticks): owt to the nowt = 1 Class “Girls were better than boys by 1” (Via @danicquinn): How would you do 12.5 […]