- Plutonium (Wikipedia)
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.
- Zachary Taylor (Wikipedia)
Zachary Taylor (November 24, 1784 – July 9, 1850) was the 12th president of the United States, serving from 1849 until his death in 1850. Taylor was a career officer in the United States Army, rising to the rank of major general and becoming a national hero for his victories in the Mexican–American War. As a result, he won election to the White House despite his vague political beliefs. His top priority as president was to preserve the Union. He died 16 months into his term from a stomach disease. Taylor had the third-shortest presidential term in U.S. history.