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Permalink Submitted by Anonymous on May 17, 2012

123456789 is also a correct answer .

Maths in a minute

Want facts and want them fast? Our Maths in a minute series explores key mathematical concepts in just a few words.

Charles Trevelyan: The geometry of design

Furniture designer Charles Trevelyan talks about the importance of maths in designing structures that are not only beautiful but also strong.
Bach and the musical torus

In a previous article we found a Möbius strip in Bach's music. This time it's a doughnut shape.
How not to buckle under pressure

Ahmer Wadee explains how to keep tall structures from buckling under their own weight.
The catenary goes to Wembley

Engineer Paul Shepherd explains the famous arch and drops some eggs.
Maths in a minute: Euler's identity

Here's a quick introduction to the beauty queen amongst mathematical formulas.