This autumn more than a million students are going to take part in an experiment that could re-invent the landscape of higher education. Some of the biggest powerhouses in US higher education are offering online courses - testing how their expertise and scholarship can be brought to a global audience. Harvard and the Massachusetts Institute of Technology have formed a $60m (£38m) alliance to launch edX, a platform to deliver courses online - with the modest ambition of "revolutionising education around the world". Sounding like a piece of secret military hardware, edX will provide online interactive courses which can be...
