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magnalium

(Encyclopedia)magnalium măgnāˈlēəm [key], alloy of aluminum and about 5% magnesium. Although weak and soft in the elemental state, magnesium alloys with aluminum, manganese, zinc, tin, zirconium, and cerium to...

Lynn

(Encyclopedia)Lynn, city (1990 pop. 81,245), Essex co., E Mass.; inc. as a town 1631, as a city 1850. Lynn is an old industrial center. The first ironworks (1643) and the first fire engine (1654) in the country wer...

Huntington Beach

(Encyclopedia)Huntington Beach, city (2020 pop. 198,711), Orange co., S Calif., on the Pacific coast, across from Santa Catalina Island, in an oil-producing area; inc...

Irvine, city, United States

(Encyclopedia)Irvine ûrˈvīn [key], city (2020 pop. 307,670), Orange co., SW Calif.; inc. 1971. Its indus...

biofeedback

(Encyclopedia)biofeedback, method for learning to increase one's ability to control biological responses, such as blood pressure, muscle tension, and heart rate. Sophisticated instruments are often used to measure ...

Black, Greene Vardiman

(Encyclopedia)Black, Greene Vardiman, 1836–1915, American dentist, b. Scott co., Ill. Professor at Chicago College of Dental Surgery (now part of Loyola Univ.) from 1883 to 1889 and professor (from 1891) and dean...

Guarneri

(Encyclopedia)Guarneri gwärnĕrˈēəs [key], family of violinmakers of Cremona, Italy. The first craftsman of the family was Andrea Guarneri, c.1626–1698, a pupil of Niccolò Amati. He designed and built his in...

Brahe, Tycho

(Encyclopedia)Brahe, Tycho tīˈkō brä [key], 1546–1601, Danish astronomer. The most prominent astronomer of the late 16th cent., he paved the way for future discoveries by improving instruments and by his prec...

Locatelli, Pietro

(Encyclopedia)Locatelli, Pietro pyĕˈtrō lōkätĕlˈlē [key], 1695–1764, Italian violinist and composer. Much of his life was spent in Amsterdam, where he died. An outstanding virtuoso, he wrote studies and c...

mute

(Encyclopedia)mute myo͞ot [key], in music, device designed to diminish uniformly the loudness of a musical instrument. For example, a trumpet mute is cone-shaped and fits into the instrument's bell, and a violin m...