- The utility frequency, (power) line frequency (American English) or mains frequency (British English) is the nominal frequency of the oscillations of alternating current (AC) in a wide area synchronous grid transmitted from a power station to the end-user. In large parts of the world this is 50 Hz, although in the Americas and parts of Asia it is typically 60 Hz. Current usage by country or region is given in the list of mains electricity by country.
- Hamlin Park (wta.org)
Hamlin Park, the largest and oldest park in the city of Shoreline, is named for the pioneering Hamlin family who had a homestead in the area in the late 19th century. During their tenure, the Hamlins logged much of the area, but the forest gradually returned. Today many second-growth trees here are over 100 years old. Mostly you will see cedars and firs, along with a few madrones and a variety of other deciduous trees.