- A steam engine is a heat engine that performs mechanical work using steam as its working fluid. The steam engine uses the force produced by steam pressure to push a piston back and forth inside a cylinder. This pushing force can be transformed by a connecting rod and crank into rotational force for work. The term “steam engine” is most commonly applied to reciprocating engines as just described, although some authorities have also referred to the steam turbine and devices such as Hero’s aeolipile as “steam engines”. The essential feature of steam engines is that they are external combustion engines, where the working fluid is separated from the combustion products. The ideal thermodynamic cycle used to analyze this process is called the Rankine cycle. In general usage, the term steam engine can refer to either complete steam plants (including boilers etc.), such as railway steam locomotives and portable engines, or may refer to the piston or turbine machinery alone, as in the beam engine and stationary steam engine.
- Seattle Neighborhoods: University District — Thumbnail History (historylink.org)
Seattle’s University District, home of the University of Washington since 1895, is located in the northeast section of the city, north of the Portage Bay part of Lake Union. Its main spurs to development were the developer James Moore (1861-1929), the 1895 move of the Territorial University from downtown to what was then called Brooklyn, and the Alaska-Yukon-Pacific Exposition on the University of Washington campus in 1909. In the late twentieth century, the main challenges to this “city within a city” have been the development of nearby malls. It is a neighborhood of restaurants, cafes, a renowned street fair, a farmer’s market, and a few venerable institutions such as the University Book Store, University Inn, and the Meany Hotel.