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A woman votes in a booth at a polling station during India's general election in Cooch Behar, West Bengal on April 11, 2019

How maths could fix the problems with India’s voting machines

19 April 2019

The world’s biggest election is under way in India. Trust in the machines used to vote is low, but better maths could spot manipulation or errors, says Edd Gent
Sex-selective abortions may have stopped the birth of 23 million girls

Sex-selective abortions may have stopped the birth of 23 million girls

16 April 2019

A huge analysis suggests sex-selective abortions have led to at least 23 million fewer girls born worldwide, but birth ratios are now returning to normal

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