The Olympics are finally here and the web is awash with interactive graphics and visualisations.

Here are the ones it’s worth taking a second look at:

Dressed for a world record?
This is a must-view for swimming fans. The invention of slick, hi-tech bodysuits enabled a series of world records to be broken, but since the suits were banned in 2010 few records have been beaten. The Washington Post looks at the evolution of Olympic swimwear and tracks this against world records in each swimming discipline. Read more