Episode one of Another Five Numbers, the BBC radio series presented by Simon Singh.
Simon Singh’s journey begins with the number 4, which for over a century has fuelled one of the most elusive problems in mathematics: is it true that any map can be coloured with just 4 colours so that no two neighbouring countries have the same colour? This question has tested some of the most imaginative minds — including Lewis Carroll’s — and the eventual solution has aided the design of some of the world’s most complex air and road networks.
Tagged with mathematics five numbers book:author=simon singh bbc four
Episode one of Five Numbers, the BBC radio series presented by Simon Singh.
What’s 2 minus 2? The answer is obvious, right? But not if you wore a tunic, no socks and lived in Ancient Greece. For strange as it sounds, ‘nothing’ had to be invented, and then it took thousands of years to catch on.
Tagged with mathematics five numbers book:author=simon singh bbc zero
Episode one of A Further Five Numbers, the BBC radio series presented by Simon Singh.
Literally, the most popular number, as it appears more often than any other number. More specifically, the first digit of all numbers is a 1 about 30% of the time, whereas it is 9 just 4% of time. This was accidentally discovered by the engineer Frank Benford. It works for all numbers – mountain heights, river lengths, populations, etc.
Episode five of Five Numbers, the BBC radio series presented by Simon Singh.
Given the old maxim about an infinite number of monkeys and typewriters, one can assume that said simian digits will type up the following line from Hamlet an infinite number of times.