Description: At the Archives we get to see hundreds and hundreds (technically ~3 million if we wanted) images and photographs. We sometimes lose focus (ahh, get it) of all the amazing people behind the lens.National Photograph Month at the Archives
Description: The term “personal equation” came into use in the 19th century as scientists found that observers have inherent biases: some anticipate events, and some report events after they have occurred. Recognition of the problem led to a spate of personal equation instruments: some measured biases of this sort, and some reduced the effect of personal errors. Most of these