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We take reliable radio communications for granted, but accommodating many different users is not easy.
explains how the mathematics of colouring graphs can help avoid interference on your mobile phone.
The dynamic sun
On 11th August 1999 a total eclipse of the Sun will be visible from parts of the UK. It will provide a spectacular display, but why is the Sun so interesting?
Put the gobbling goat on a diet
Middle class problems
A famous question involving networks appears to have come closer to an answer.
Ramanujan surprises again
A fascinating discovery sheds new light on the work of the Indian mathematician Srinivasa Ramanujan.
What is a black hole – mathematically?
Pau Figueras explains how Einstein's theories predicted the existence of black holes, and how to describe...
What is a black hole – physically?
Small, dark, and very hard to see. This and far more indepth answers to every question you ever wanted to...
Physics in a minute: What's the problem with quantum gravity?
At the heart of modern physics lurks a terrible puzzle: the two main theories that describe the world we...
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