Karen Pavelka, at the University of Texas — Austin,  will explore the use of Eularian Video Magnification (EVM) for the examination of cultural heritage materials with a 2015 PTT Grant.  Eularian Video Magnification adds a new and exciting dimension to traditional object examination techniques. The ability to view objects is critical in cultural heritage conservation and EVM, an analytical technique initially developed for use in the medical field, can be adapted for conservation. By amplifying subtle variations in the video signal, EVM reveals movement invisible to the unaided eye. This study will systematically use EVM on paper and other materials as they are exposed to fluctuating relative humidity. Preliminary work has revealed unexpected movements and previously unseen stresses within the paper structure. A video is posted at http://youtu.be/VJJ_x7kfk2Q.

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