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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.
Information about information
What is information and how does it shape our reality?
Does light have weight? Newton thought so. His laws predicted that gravity would bend of light, two centuries...
Fighting epidemics with maths
How maths helps us understand and fight infectious diseases.
In a lower dimension
Could the world be simpler than our senses suggest?
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...
The philosophy of cosmology
Can philosophy help explain our Universe?
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