- In 1891, Westinghouse engineers in Pittsburgh selected 60 Hz as their new power frequency. That same year, AEG engineers in Berlin selected 50 Hz as their new power frequency. Although much has happened since 1891, these two frequencies remain the principal power frequencies in use worldwide. Many people continue to be affected by the decisions on frequency standards made so very long ago. The author discusses the origins of 60 Hz as the power frequency now used in the USA. The author covers the work of Charles Scott, Benjamin Lamme and L.B. Stillwell of Westinghouse, the experimental period of 1821 to 1880, the light period from 1880 to 1890, the power and period of 1890 to 1925, and the period of systems interconnection from 1925 to 1990. Particular emphasis is given to the development of frequency for lighting systems and of frequency development in the USA, Europe and Japan.
- Humptulips-Grass Creek Wildlife Area Unit (wdfw.wa.gov)
The Humptulips-Grass Creek Unit is located in North Bay at the confluence of the Humptulips River, Grass Creek, and Grays Harbor. No maintained trails exist, and the best access is by boat or by the adventuring brush buster. This area is a popular waterfowl hunting and fishing site and has excellent birding opportunities. The unit is managed for tidal channel and estuary preservation in North Bay, salmon recovery, and waterfowl habitat.