Roger Federer won the Australian Open tennis final on 29 January 2017, aged 35, to beat his great rival Rafael Nadal
Day: February 2, 2017
D’Arcy Wentworth Thompson: the man who defined the mathematical beauty of nature
D’Arcy Wentworth Thompson was a man ahead of his time – a zoologist, the man who defined mathematical beauty in nature, and a conservationist