Oswaldo Royett

We represent each language within black borders and then provide the numbers of native speakers (in millions) by country. The colour of these countries shows how languages have taken root in many different regions. There are at least 7,102 known languages alive in the world today. Twenty-three of these languages are a mother  tongue for more than 50 million people. The 23 languages make up the native tongue of 4.1 billion people. We represent each language within black borders and then provide the numbers of native speakers (in millions)  by country. The colour of these countries shows how languages have taken root in many different regions. Click to view the full-size infographic in high resolution.  

It's one of the world's most famous mountains. And now it's the site of the world's biggest ever photograph. Photographers have worked to stitch together a huge picture of Mont Blanc that is by far the most detailed image ever taken, allowing people to pick out individual climbers from thousands of meters away. Users can zoom through the slick website  to find out details for themselves. Or they can pick from some pre-selected ones, like a crane building a huge house on a mountainside or climbers captured mid-journey. The team, led by Italian photographer Filippo Blengini, worked in -10 degrees-centigrade for 35 hours to take the picture, according to their website. During that time they were stuck 3500 metres up. The photo was taken using a Canon 70D SLR camera, fitted with a long 400mm lens that was extended even further. That was attached to a Clauss robotic mount which meant that the camera could automatically move around as it took the photos.