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Joseph Parsons COMEGYS, Congress, DE (1813-1893)

Senate Years of Service: 1856-1857Party: OppositionCOMEGYS, Joseph Parsons, a Senator from Delaware; born in “Cherbourg,” Kent County, near Dover, Del., December 29, 1813; attended the old…

John Parsons COOK, Congress, IA (1817-1872)

COOK, John Parsons, a Representative from Iowa; born in Whitestown, Oneida County, N.Y., August 31, 1817; moved with his father to Davenport, Iowa, in 1836; studied law; was admitted to the…

Levi Parsons MORTON, Congress, NY (1824-1920)

MORTON, Levi Parsons, a Representative from New York and a Vice President of the United States; born in Shoreham, Addison County, Vt., May 16, 1824; attended the public schools and Shoreham…

Edward Young PARSONS, Congress, KY (1842-1876)

PARSONS, Edward Young, a Representative from Kentucky; born in Middletown, Jefferson County, Ky., December 12, 1842; attended the public schools at Louisville until twelve years of age;…

Parsons, Sir Charles Algernon

(Encyclopedia) Parsons, Sir Charles Algernon, 1854–1931, British engineer. He invented a revolutionary steam turbine that bears his name. His first turbines were constructed to drive generators to…

Chemistry: Percent Composition

Percent CompositionChemistryThe MoleWhat's a Mole?Molar MassConverting Between Moles, Molecules, and GramsPercent Composition Sometimes, it's handy to figure out how much of an element is present…

Super-sized Americans

Many Americans eat too much and don’t exercise enough. If you have a hard time believing that, look around. About 16% of kids ages 12 to 19 are obese and 30% are overweight. As for adults, 31% are…

mole, in chemistry

(Encyclopedia) mole, in chemistry, a quantity of particles of any type equal to Avogadro's number, or 6.02×1023 particles. One gram-molecular weight of any molecular substance contains exactly one…