 And finally, I get a free pick from the week's news events. So if you read through a newspaper from start to finish, the back pages are always the sport. And so this week, Unexpected Elements is going to follow the same established order for the science that we find behind the news. So for those of you who like your sport, it's Wimbledon Tennis Championship and international football tournament, the Euros at the moment, and they're hitting the sporting headlines.