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Hamill, Pete

(Encyclopedia)Hamill, Pete (Wlliam Peter Hamill Jr.), 1935–2020, American journalist and author, b. Brooklyn, N.Y. He served in the U.S. Navy (1952–56) and worked as a graphic designer (1957–60) before being ...

heartburn

(Encyclopedia)heartburn, burning sensation beneath the breastbone, also called pyrosis. Heartburn does not indicate heart malfunction but results from nervous tension or overindulgence in food or drink. The sensati...

governor, device

(Encyclopedia)governor, automatic device used to regulate and control such variables as speed or pressure in the functioning of an engine or other machine. A governor may be an electric, hydraulic, or mechanical de...

Incheon

(Encyclopedia)Incheon or Inchon ĭnˈchän, Korean ēnchən [key], city, Gyeonggi (Kyonggi) prov., NW South Korea, on the Yellow Se...

hypothalamus

(Encyclopedia)hypothalamus hīˌpəthălˈəməs [key], an important supervisory center in the brain, rich in ganglia, nerve fibers, and synaptic connections. It is composed of several sections called nuclei, each ...

Abrikosov, Alexei Alekseyevich

(Encyclopedia)Abrikosov, Alexei Alekseyevich, 1928–2017, Russian-American physicist, Ph.D. Institute for Physical Problems, USSR Academy of Sciences, 1951. Abrikosov was a researcher at the Institute, then from 1...

absolute zero

(Encyclopedia)absolute zero, the zero point of the ideal gas temperature scale, denoted by 0 degrees on the Kelvin and Rankine temperature scales, which is equivalent to −273.15℃ and −459.67℉. For most gase...

contact lens

(Encyclopedia)contact lens, thin plastic lens worn between the eye and eyelid that may be used instead of eyeglasses. Actors, models, and others wear them for appearance, and athletes use them for safety and conven...

Balaguer, Joaquín

(Encyclopedia)Balaguer, Joaquín (Joaquín Balaguer Ricardo) hwäkēnˈ bälägārˈ rēkärˈᵺō [key], 1907–2002, president of the Dominican Republic (1960–62, 1966–78, 1986–96). A lawyer by trade, he h...

pulse, in anatomy

(Encyclopedia)pulse, alternate expansion and contraction of artery walls as heart action varies blood volume within the arteries. Artery walls are elastic. Hence they become distended by increased blood volume duri...