In this month’s thrilling instalment of the nation’s #1 maths podcast1 , @reflectivemaths and I discuss… The recent leap second The number of the podcast, 999,999,999,998,999,999,999,999. Farey sequences – introducing the mediant of two fractions A couple of agreeable sequences, via @pickover The number of squares of any size on a chessboard The envelopes game Callback to traffic studies: visualising shockwaves A simple puzzle in the New York Time Last episode‘s puzzle answer: 53 (we think) Puzzle: In a Wimbledon tennis match that goes to five sets, the number of games one of the players wins in each set forms […]