How the Burj Khalifa is cleaned by Robert Jones, 27 August 2013 Check out how the world’s tallest building, the Burj Khalifa, has its windows cleaned now by watching this short video 1,838 views comments Tags: BBC, burj khalifa, cleaned, explained, how, mechanisms, Windows More Like This... Technology What is a ‘Smart TV’? Check out this video from CES 2012 in which Samsung demo their new ES8000 series Smart TV’s voice and gesture control features. Technology What determines how fast your internet connection is? Why are fibre-optic cables so much faster than copper wires? Technology Electronic cigarettes How do eCigarettes create vapour that mimics tobacco smoke and are they harmful? More From The Internet... How the Titanic sank 15 Hilarious Cat GIFs That Will Lighten Up Your Day Which astronaut is speaking at the start of Daft Punk's new song Contact, and what is he talking about? What would happen if we blew up the Moon?