Oil paint considered drying, those with an iodine number of 115-130 are semi-drying, and those with an iodine number of less than 115 are non-drying. Linseed oil, the most prevalent vehicle for artists' oil paints, is a drying oil. When exposed to air, oils do not undergo the same evaporative process that water does. Instead, they polymerize into a dry semisolid. This rate of process can be very slow, depending on the oil. The advantage of the slow-drying quality of oil paint is that an artist can develop a painting gradually. Earlier media such as egg tempera dried quickly, which prevented the
Picway Power Plant switch while replacing an oil circuit breaker. Picway Power Plant Picway Power Plant was a 220 megawatt (MW) coal power plant located west of Lockbourne in Pickaway County, Ohio. The plant generated electricity from 1926 until its closure in 2015. It was operated by American Electric Power (AEP). Picway began operations in September 1926. The plant was operated by the Columbus Railway Power and Light Company, a forerunner of AEP. The two units had a combined capacity of 60 MW. Construction of Unit 3 was temporarily halted in 1942 by the War Production Board (WPB) as the building of new