Last week Tanya Streeter dived into the record books by descending 400 feet into the ocean and propelling herself back to the surface, all with one very deep breath lasting three and a half minutes.

BBC: Breakfast with Frost

As part of a pact between theaters and the Motion Picture Association of America, most trailers may not exceed two and a half minutes, with one exception a year made for each studio.

CNN: Movie previews: Love 'em or hate 'em, they're here to stay

However, in one test when the throttle was applied, it took 13 minutes for a second machine to be infected, and half an hour for a third.

ECONOMIST: A new way of thwarting viral epidemics on computers

In the men's marathon in central Berlin at the start of the day, Abel Kirui and Emmanuel Mutai secured a Kenyan one-two with Kirui clocking a championship-record time of two hours six minutes and 55 seconds after a blistering first half around the city.

BBC: Jamaica's Bolt takes third gold