Michelle Obama, who ditched the boxy jackets and dowdy style of so many first ladies before her, addressed the Democratic National Convention in a custom, royal blue dress by designer Christian Siriano.
If things had gone to plan for Carlin Isles, the Olympic Games might have witnessed a duel between the fastest man in rugby and the fastest man on the planet. Four years ago, Isles was a promising sprinter with dreams of competing in the Olympics, with a respectable personal best of 10.12 seconds for the 100m, a time that would have got him into the semi-finals of the 2012 games. By chance, he stumbled across rugby during a search for a workout routine on Youtube, and wondered whether his skills would translate to the sport.
In its round-the-world tour, the plane Solar Impulse 2 has become a showcase for Sun-powered technology, featuring innovations which could have a bright commercial future. Solar Impulse 2 is not the first solar-powered plane, but unlike its predecessors it can store enough energy in its batteries to fly through the night. "The plane has the wingspan of a 747 but only the weight of a car -- it had to be designed with the principle of efficiency first and foremost," said Adnan Amin, head of the International Renewable Energy Agency (IRENA).