- In quantum mechanics, Schrödinger’s cat is a thought experiment concerning quantum superposition. In the thought experiment, a hypothetical cat may be considered simultaneously both alive and dead, while it is unobserved in a closed box, as a result of its fate being linked to a random subatomic event that may or may not occur. This experiment viewed this way is described as a paradox. This thought experiment was devised by physicist Erwin Schrödinger in 1935 in a discussion with Albert Einstein to illustrate what Schrödinger saw as the problems of the Copenhagen interpretation of quantum mechanics.
- Marysville — Thumbnail History (historylink.org)
Marysville is located in the west-central part of Snohomish County, five miles north-northeast of the county seat, Everett. Although the origin of its name has been the subject of considerable debate, most now agree that it comes from Maria Comeford (1846-1904), the wife of the founding father of Marysville, James Comeford (1833-1909). Comeford arrived in 1878; the town was platted in 1885, and in 1891 Marysville was incorporated. Long a small town known for its logging industry and later for its strawberry farms, Marysville has experienced rapid growth in the past quarter century, with its population quintupling between 1980 and 2000. The 2000 U.S. Census recorded a population of 25,315, with the town continuing to grow rapidly both in population and area today (2007), aided by multiple annexations during the past decade.