- In geometry, a star polygon is a type of non-convex polygon. Regular star polygons have been studied in depth; while star polygons in general appear not to have been formally defined, certain notable ones can arise through truncation operations on regular simple or star polygons.
- Seattle Neighborhoods: Green Lake — Thumbnail History (historylink.org)
In September 1855, surveyor David Phillips hacked his way through bushes to the muddy banks of a small lake north of Seattle’s Lake Union, and found a tired, postglacial lake. His team entered the name Green Lake into their field logs, which eventually reached their employer, the Surveyor General of the United States. Their late summer visit coincided with the appearance of seasonal algae blooms and may explain the name they entered on the survey map. Area visitors have been talking about the foul smelling green stuff for the past 80 years.