What links Danger Mouse and Sherlock Holmes? The Saturday quizRugby sevens lasts 14 minutes with 14 players; pi has been calculated to 105 trillion digits this year; Australia is both a country and a continent.
Some Geologists Argue Earth Has Less Than Seven ContinentsThe number of continents is debated between cultural and geological definitions, leading to different conclusions about whether there are five, six, seven, or even eight continents.