- Marymoor Park (Wikipedia)
Marymoor Park, located on the north end of Lake Sammamish in Redmond, Washington, is King County’s largest, oldest, and most popular park, with more than 3 million annual visitors coming to roam its 640 acres (2.6 km2). Among recreational activities available are various sports facilities, rock climbing, a 40-acre off-leash dog park and a velodrome. It is also one end of the Sammamish River Trail, a biking and walking trail. In addition, a radio control aircraft flying field and a pet memorial garden are within the park’s boundaries.
- Astatine (Wikipedia)
Astatine is a chemical element; it has symbol At and atomic number 85. It is the rarest naturally occurring element in the Earth’s crust, occurring only as the decay product of various heavier elements. All of astatine’s isotopes are short-lived; the most stable is astatine-210, with a half-life of 8.1 hours. Consequently, a solid sample of the element has never been seen, because any macroscopic specimen would be immediately vaporized by the heat of its radioactivity.