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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…

Parsons, William

(Encyclopedia) Parsons, William: see Rosse, William Parsons, 3d earl of.

Gram's stain

(Encyclopedia) Gram's stain, laboratory staining technique that distinguishes between two groups of bacteria by the identification of differences in the structure of their cell walls. The Gram stain…

Parsons, Lucy

(Encyclopedia) Parsons, Lucy, 1851–1942, American anarchist and labor activist. Although she claimed publicly to have been born of Mexican and Native American descent as Lucia Gonzalez, she was…

gram-molecular weight

(Encyclopedia) gram-molecular weight, amount of a molecular substance whose weight, in grams, is numerically equal to the molecular weight of that substance. For example, one gram-molecular weight of…

gram-atomic weight

(Encyclopedia) gram-atomic weight, amount of an atomic substance whose weight, in grams, is numerically equal to the atomic weight of that substance. For example, 1 gram-atomic weight of atomic…

Lathrop, George Parsons

(Encyclopedia) Lathrop, George ParsonsLathrop, George Parsonslāˈthrəp [key], 1851–98, American author, b. near Honolulu; studied in Germany (1867–70). He was the husband of Rose Hawthorne Lathrop,…

gram

(Encyclopedia) gram, abbr. g, unit of mass equal to 0.001 kilogram, the basic unit of mass in the metric system. The gram is the unit of mass in the cgs system. It is approximately equal to 0.035…

Parsons, Theophilus

(Encyclopedia) Parsons, Theophilus, 1750–1813, American jurist, b. Byfield, Mass. One of the leading lawyers in New England, he was an outstanding member of the Essex Junto, which opposed (1778) the…