Sometimes, the sport itself, the event, isn’t the coolest thing. Sometimes, the coolest things are around it. For example, the Rugby Union World Cup Final that took place last week at Eden Park, in Auckland, New Zealand. The All Blacks beat France 8-7, and reporters weren’t the only one taking notes.

Few know that under Eden Park, 25 meters below, is a Siesometer, an instrument that measures the motions of the ground, and also picks up noise, like the one created by 60,000 fans, nearly all of them cheering for New Zealand.

As you can see, the peak points are easy to identify, and predict. The beginning of the game, Tony Woodcock’s try, the noise building up towards the end, the final whistle, Richie McCaw’s post game speeches and lifting of the trophy.

Although it’s major destiny is to alert potential hazards – earthquakes, it’s nice to see how science interacts with sports, and how one huge chunk of fans make a difference, even on the Earth itself.