- Sammamish — Thumbnail History (historylink.org)
Sammamish (King County) is located on a broad plateau about 14 air miles east of Seattle. Until the 1870s, the area was largely uninhabited by humans. In 1877 Martin Monohon became the first permanent non-Indian settler on the Sammamish Plateau, but for much of the next century the region was mostly woods, chicken farms, dairy farms, and lake resorts. Development began edging onto the plateau in the 1960s and accelerated in the final decades of the twentieth century, transforming the pleasant countryside into an affluent Seattle suburb. The city of Sammamish incorporated on August 31, 1999, and in recent years has twice been recognized by Money magazine as one of the best small towns in America to live in. The 2010 U.S. Census recorded Sammamish’s population as 45,780 and its land area as 18.2 square miles.
- Antimatter (Wikipedia)
In modern physics, antimatter is defined as matter composed of the antiparticles (or “partners”) of the corresponding particles in “ordinary” matter, and can be thought of as matter with reversed charge, parity, and time, known as CPT reversal. Antimatter occurs in natural processes like cosmic ray collisions and some types of radioactive decay, but only a tiny fraction of these have successfully been bound together in experiments to form antiatoms. Minuscule numbers of antiparticles can be generated at particle accelerators; however, total artificial production has been only a few nanograms. No macroscopic amount of antimatter has ever been assembled due to the extreme cost and difficulty of production and handling.