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This issue of Plus is a special, marking the occasion of Stephen Hawking's 60th birthday. Plus attended his Birthday Conference in Cambridge, where we interviewed some of the world's most influential mathematicians and physicists.

Light bends the 'wrong' way

May 1, 2001

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.

A cute problem goes big

Mathematicians have revived an old approach to solving the famous Riemann hypothesis.
Looking for love?

Find out how OKCupid's algorithm works.
Helping men with early prostate cancer

A new online tool developed with the help of statisticians enables patients to make informed treatment choices.
Our changing picture of gravity

To celebrate the recent centenary of the first major test of Einstein's general theory of relativity, we look back over how our picture of gravity has changed.
No maths for Europe

How should the seats in the European Parliament be allocated?

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