Content about “
geometry
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Article

Five Martin Gardner eye-openers involving squares and cubes

This week would have been the 100th birthday of Martin Gardner, who is deservedly credited with turning on several generations of people worldwide to the pleasures of maths! To mark the occasion here are some favourite puzzles that, apart from being fun, also lead to some serious maths.

News story

Maryam Mirzakhani: counting curves

Maryam Mirzakhani is being honoured for her "rare combination of superb technical ability, bold ambition, far-reaching vision, and deep curiosity".
Article

Circles rolling on circles

Imagine a circle with radius 1 cm rolling completely along the circumference of a circle with radius 4 cm. How many rotations did the smaller circle make? Be prepared for a surprise!
Article

Polar power

Like spirals and flowers? Then you'll love polar coordinates and the pretty pictures they allow you to draw!
Article

3D printing mathematics

Saul Schleimer and Henry Segerman show off some of their beautiful 3D printed mathematical structures.
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Maths in a minute: Not always 180

Did you learn at school that the angles in a triangle always add up to 180 degrees? If yes then your teacher was wrong. Find out why here.
News story

Watch out, it's behind you!

The Plus team's vehicle of choice is the bicycle, so we're particularly pleased about an announcement that hit the news this month: a clever car mirror that eliminates the dreaded blind spot has been given a patent in the US. The mirror was designed by the mathematician Andrew Hicks, of Drexel University, after years of puzzling over the problem.
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