From Anne Gilman's The Jolly Balance (2009, 2012), based on drawings made in a handwritten physics journal from 1918. "The Jolly Balance was a phrase I found in the original physics journal and refers to an instrument that measures specific gravity. I use it to refer to our attempt to balance all the parts of our lives on a day-to-day basis," she explains at the Center for Book Arts website, here. 

Gilman's 2012 "site-specific installation: a series of a multi-panel, interactive drawings...reads like a book on a wall," according to Art In New York City. More here, and here. View more amazing photos of The Jolly Balance and other projects on Gilman's website.