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gravitational lensing
Faster than a falling bullet...
Scientists have for the first time measured the speed of gravity and tested Einstein's assumption - or have they?
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Maths in a minute: Writing infinite sums
How to write a sum that's infinitely long.
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The 2014 Plus advent calendar
In this year's advent calendar we bring you some of our favourite books and other mathematical toys, so you...
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When things get weird with infinite sums
What is 1-1+1-1+1-1+...? How infinite sums challenge our notion of arithmetic.
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23 and maths
The company 23andMe made headlines by launching its DNA testing service in the UK. But how are the risks of...
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Mathematical mysteries: Hailstone sequences
Here's an easy game that leads you straight to an unsolved question in maths.
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The philosophy of cosmology
Can philosophy help explain our Universe?
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