While it is possible to get worm densities up to as much as 20 kg/m 2 or 4 lbs per square foot (Edwards, 1999), the most common densities for vermicomposting are between 5 and 10 kg/m 2 (1 to 2 lbs per ft 2).
A massive open online course (MOOC) is a model for delivering learning content online to any person who wants to take a course, with no limit on attendance. A short video about MOOCs and the connected age. Recent Spotlight.
mooc.org is an edX destination. Learn how edX and Massive Open Online Courses (MOOCs) can help change your life and transform learning at your organization. Explore thousands of edX courses in key fields like computer science, data science, business and management, and more.