- Plutonium is a chemical element; it has symbol Pu and atomic number 94. It is a silvery-gray actinide metal that tarnishes when exposed to air, and forms a dull coating when oxidized. The element normally exhibits six allotropes and four oxidation states. It reacts with carbon, halogens, nitrogen, silicon, and hydrogen. When exposed to moist air, it forms oxides and hydrides that can expand the sample up to 70% in volume, which in turn flake off as a powder that is pyrophoric. It is radioactive and can accumulate in bones, which makes the handling of plutonium dangerous.
- Loring Park, Minneapolis (Wikipedia)
Loring Park is a neighborhood in the Central Community of Minneapolis, Minnesota. Located on the southwest corner of downtown Minneapolis, it also lends its name to Loring Park, the largest park in the neighborhood. The official boundaries of the neighborhood are Lyndale Avenue to the west, Interstate 394 to the north, 12th Street to the northeast, Highway 65 to the east, and Interstate 94 to the south.