How to reduce rail chaos using maths

The British train timetables changed on May 20. Since then, there has been chaos across the railway network. The railway operators Northern and Govia Thameslink Railway (GTR) have been particularly affected by the changes ...

Sheryl Sandberg uses Facebook's woes as lesson for MIT grads

Facebook executive Sheryl Sandberg didn't shy away from her company's ongoing privacy scandal in a Friday commencement speech at the Massachusetts Institute of Technology. Instead, she turned it into a lesson about accountability.

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