+2
W.G.T., much like Nasa's Clickworks project, is an exercise in crowd sourcing. Interested users can donate small bits of time by analyzing single frames within a much larger video (in this case the first televised performance of the Moonwalk). This enables the production of information that otherwise would be prohibitively labor intensive. Working under the principal that useful data can be gathered by asking internet users to perform "...tasks that require human perception and common sense, but may not require a lot of scientific training."