(Wiley) The fluid and loose brushwork used by J.W.M. Turner and other innovative 19th century artists to capture the momentary effects of light was technically made possible by the addition of 'gumtion' or 'megilp' to the paint matrix, which gave the paints the jelly-like consistency needed for their impasto-rich paintwork. In the journal Angewandte Chemie, scientists unveil the crucial role lead acetate played in this gelation process.
from EurekAlert! - Social and Behavioral Science http://ift.tt/2jlRVnk
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