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Bourne

(Encyclopedia) Bourne, town (2020 pop. 20,452), Barnstable co., SE Mass., crossed by Cape Cod Canal; settled 1627, inc. 1884. Bourne Bridge (1935),…

nitrous oxide

(Encyclopedia) nitrous oxide or nitrogen (I) oxide, chemical compound, N2O, a colorless gas with a sweetish taste and odor. Its density is 1.977 grams per liter at STP. It is soluble in water,…

holmium

(Encyclopedia) holmiumholmiumhōlˈmēəm [key] [Lat.,=Stockholm], metallic chemical element; symbol Ho; at. no. 67; at. wt. 164.93032; m.p. about 1,474℃; b.p. about 2,425℃; sp. gr. 8.78 at 25℃; valence…

hay fever

(Encyclopedia) hay fever, seasonal allergy causing inflammation of the mucous membranes of the nose and eyes. It is characterized by itching about the eyes and nose, sneezing, a profuse watery nasal…

jet stream

(Encyclopedia) jet stream, narrow, swift currents or tubes of air found at heights ranging from 7 to 8 mi (11.3–12.9 km) above the surface of the earth. They are caused by great temperature…

Ryder, Donald P.

(Encyclopedia) Ryder, Donald P., , 1926-2021, African-American architect, b. Springfield, Oh., Univ. of Illinois (BA, 1951). Ryder was raised in Dayton…

psychrometer

(Encyclopedia) psychrometerpsychrometersīkrŏmˈĭtər [key], one of many instruments used for measuring the water vapor content or relative humidity of the atmosphere. It consists of two identical…

speedometer

(Encyclopedia) speedometer, instrument that indicates speed. A cable from an automotive speedometer is attached to the rear of the transmission of an automobile; the cable turns at a rate…

Eustachian tube

(Encyclopedia) Eustachian tubeEustachian tubey&oomacr;stāˈshən [key] [for Bartolomeo Eustachi], a hollow structure of bone and cartilage extending from the middle ear to the rear of the throat,…

Templewood, Samuel John Gurney Hoare, 1st Viscount

(Encyclopedia) Templewood, Samuel John Gurney Hoare, 1st Viscount, 1880–1959, British statesman. He entered parliament as a Conservative in 1910, served (1922–24, 1924–29) as secretary of state for…