IAN HEMBROW is a freelance writer, researcher and former visiting scholar at the Oxford Centre for Life Writing at Wolfson College, University of Oxford. In 2016, while working in Sweden on a book about medicine safety, he stumbled across the story and legacy of Anders Celsius – the largely unknown man with the extremely well-known name. Ian’s research took him to the Arctic Circle to retrace the steps of the pioneering 1736–37 expedition on which Celsius helped to prove the shape of the Earth. He lives with his wife in Bristol, England.