by David, 22 July 2013 | 0 comments

1. Pi (or π) is a number that helps describe circles. It links the width of a circle with its perimeter, or the radius of a circle with its area, or the width of a ball and its volume. It’s the same number no matter how big your circle is – about 3.14159265.

Continue reading Approximately pi facts about pi approximation dayCategories:

by David, 10 July 2013 | 0 comments

Three and five. Five and seven. Eleven and thirteen. Prime numbers often appear as twins, only two apart. For hundreds of years, mathematicians have wondered – is there a biggest pair of twin primes, or does the list of twins keep going forever?

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by David, 9 July 2013 | 0 comments

In the last decade, services such as Facebook have provided scientists with lots of information about current friendship links. However, they tell us little about historical friendships. So what might be the structure of an Ancient Greek social network?

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by David, 2 July 2013 | 0 comments

Do you have a favourite mug? This is my favourite. Not only does it hold my hot chocolate, it has a wicked tricky puzzle on it!

Continue reading Connection conniption!by David, 18 June 2013 | 0 comments

How did people multiply before calculators were invented? You could try doing it in your head, but you could also use a mechanical calculator, such as this set of Napier’s bones.

Continue reading Napier’s bonesby David, 4 June 2013 | 0 comments

Colouring in is for kids? Well, it’s also for mathematicians! Grab some pencils and have a go at one of the most interesting mathematical problems around!

Continue reading The four colour problemby David, 21 May 2013 | 0 comments

Here’s a fun puzzle! it’s a maze with no walls. So what’s keeping you on track? well, this maze is made of arrows – it’s an arrow maze!

Continue reading Arrow mazeby David, 7 May 2013 | 0 comments

Numbers are very important, but they can be boring and hard to read. A better way might be to draw an infographic!

Continue reading Draw an infographicby David, 25 April 2013 | 1 comments

It’s Anzac Day – time to stick a sprig of rosemary in your hat, go to the dawn service and bake a batch of Anzac biscuits. But, while I was baking, I noticed some strange things going on.

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by David, 23 April 2013 | 0 comments

Check out this trick! by colouring in boxes, you can make a strange blobby picture that transforms when reflected in a curvy mirror!

Continue reading Anamorphic art