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.
But even with higher education in transition, and with the questions raised by MOOCs and other tech-enabled alternatives to a traditional college environment, that hasnât changed. In todayâs Daily Edventure, we share an infographic from Socrato that looks at US incomes on average, with and without college degrees.