In materials science, quenching is the rapid cooling of a workpiece in water, oil or air to obtain certain material properties. A type of heat treating, quenching prevents undesired low-temperature processes, such as phase transformations, from occurring. It does this by reducing the window of time during which these undesired reactions are both thermodynamically favorable, and kinetically accessible; for instance, quenching can reduce the crystal grain size of both metallic and plastic material
The length of the day in Walla Walla varies significantly over the course of the year. In 2017, the shortest day is December 21, with 8 hours, 38 minutes of daylight; the longest day is June 21, with 15 hours, 46 minutes of daylight.
June Solstice: Longest and Shortest Day of the Year. The June solstice is the Summer Solstice in the Northern Hemisphere and the Winter Solstice the Southern Hemisphere. The June Solstice. The date varies between June 20 and June 22, depending on the year, and which time zone you are in. June Solstice in Seattle, Washington, USA is on. Tuesday, June 20, 2017 at 9:24 PM PDT (Change city) June Solstice in Universal Coordinated Time is on.