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Debate surrounds $25000 prize won by undergraduate for
universal Turing machine problem
CAPTCHA if they can
A test invented by the mathematician Alan Turing in 1950 is helping to stop spammers.
What computers can't do
looks at the life and work of wartime code-breaker Alan Turing. Find out what types of numbers we
count and why there are limits on what can be achieved with Turing machines.
Infinite sums and China's demographics
China has recently revoked its one-child policy. What better occasion to explore the mathematics of...
The maths of February 29
Find out why leap years exist, why you have to wait 400 years for your birthday pattern to repeat, and why...
Maxwell's equations and the secrets of nature
Celebrating the 150th anniversary of Maxwell's equations we talk to physicist John Ellis about what they...
Perfect birthday gift for GIMPS
Prime number enthusiasts discover new largest prime with 22,338,618 digits.
Information about information
What is information and how does it shape our reality?
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