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Healesville ... Hecate Strait
Healesville
town, Victoria, Australia. It is situated in the Dandenong Ranges and on the Maroondah Highway northeast of Melbourne. Founded (1860) on the fertile flats of the Acheron River, a tributary ...
Healey, Denis Winston, Baron Healey of Riddlesden
British economist and statesman, writer, and chancellor of the Exchequer from 1974 to 1979.
healing cult
religious group or movement that places major, or even exclusive, emphasis on the treatment or prevention by nonmedical means of physical or spiritual ailments, which are often seen as manifestations ...
health
in human beings, the extent of an individual's continuing physical, emotional, mental, and social ability to cope with his environment.
health insurance
system for the advance financing of medical expenses by means of contributions or taxes paid into a common fund to pay for all or part of health services specified in ...
health maintenance organization
organization, either public or private, that provides comprehensive medical care to a group of voluntary subscribers, on the basis of a prepaid contract. HMOs bring together in a single organization ...
Healy, George
American academic painter of highly realistic portraits.
Healy, James Augustine
first African American Roman Catholic bishop in the United States and an advocate for children and Native Americans.
Healy, T.M.
leader in the campaigns for Irish Home Rule and for agrarian reform, and the first governor-general of the Irish Free State.
Heaney, Seamus
Irish poet whose work is notable for its evocation of events in Irish history and its allusions to Irish myth. He received the Nobel Prize for Literature in 1995.
Heard and McDonald Islands
subantarctic island groups, together forming an external territory of Australia and lying in the southern Indian Ocean, 2,500 miles (4,000 km) southwest of Perth. Volcanic in origin, Heard Island is ...
hearing
in biology, physiological process of perceiving sound. See ear; mechanoreception; perception; sound reception.
hearing
in law, a trial. More specifically, a hearing is the formal examination of a cause, civil or criminal, before a judge according to the laws of a particular jurisdiction. In ...
hearing aid
device that increases the loudness of sounds in the ear of the wearer. The earliest aid was the ear trumpet, characterized by a large mouth at one end for collecting ...
Hearn, Lafcadio
writer, translator, and teacher who introduced the culture and literature of Japan to the West.
Hearne, Samuel
English seaman, fur trader, and explorer, the first European to make an overland trip to the Arctic Ocean. He was the first to show the trend of the Arctic shore.
Hearne, Thomas
English historian and antiquarian whose editions of English medieval chronicles were important sources for subsequent historians.
hearsay
in Anglo-American law, testimony that consists of what the witness has heard others say. United States and English courts may refuse to admit testimony that depends for its value upon ...
Hearst, Patricia
an heiress of the William Randolph Hearst newspaper empire who was kidnapped in 1974 by leftist radicals called the Symbionese Liberation Army, whom under duress she joined in robbery and ...
Hearst, William Randolph
American newspaper publisher who built up the nation's largest newspaper chain and whose methods profoundly influenced American journalism.
heart
organ that serves as a pump to circulate the blood. It may be a straight tube, as in spiders and annelid worms, or a somewhat more elaborate structure with one ...
heart attack
a sudden cardiac seizure that causes myocardial infarction (q.v.).
heart block
lack of synchronization in the contractions of the upper and the lower chambers of the heart-the atria and the ventricles. The lack of synchronization may range from a slight delay ...
heart failure
inability of either or both sides of the heart to pump sufficient blood to meet the needs of the body. The term is to be distinguished from heart attack, which ...
heart malformation
any deformity of the heart that develops within the first two months of fetal life. Such deformities have little effect before birth because, in the fetus, cellular respiration (via the ...
Heart River
river, Billings county, southwestern North Dakota, U.S. It rises in the badlands and flows about 200 miles (320 km) generally eastward past Dickinson to join the Missouri River south of ...
heart rot
widespread disease of trees, root crops, and celery. Most trees are susceptible to heart-rotting fungi that produce a discoloured, lightweight, soft, spongy, stringy, crumbly, or powdery heart decay. Conks or ...
Heart Sutra
("Sutra on the Heart of the Prajnaparamita"), extremely brief distillation of the essence of Prajnaparamita (q.v.; "Perfection of Wisdom") writings, much reproduced and recited throughout Asia. True to its title, ...
heart transplant
medical procedure involving the removal of a diseased heart from a patient with heart muscles damaged beyond surgical repair and its replacement with a sound heart, usually from a person ...
heart urchin
any echinoid marine invertebrate of the order Spatangoidea (phylum Echinodermata), in which the body is usually oval or heart-shaped. The test (internal skeleton) is rather fragile with four porous spaces, ...
heart-lung machine
a type of artificial heart (q.v.).
heartland
landlocked region of central Eurasia whose control was posited by Sir Halford J. Mackinder in the early 20th century as the key to world domination in an era of declining ...
hearts
card game in which players aim to avoid taking tricks that contain hearts. Hearts first appeared in the United States about 1880, although it derives from the much older European ...
heartwood
dead, central wood of trees. Its cells usually contain tannins or other substances that make it dark in colour and sometimes aromatic. Heartwood is mechanically strong, resistant to decay, and ...
heat
energy that is transferred from one body to another as the result of a difference in temperature. If two bodies at different temperatures are brought together, energy is transferred-i.e., heat ...
heat capacity
ratio of heat absorbed by a material to the temperature change. It is usually expressed as calories per degree in terms of the actual amount of material being considered, most ...
heat exchanger
any of several devices that transfer heat from a hot to a cold fluid. In many engineering applications it is desirable to increase the temperature of one fluid while cooling ...
heat pipe
form of heat exchanger (q.v.) useful for transporting heat over relatively large distances with a small temperature difference.
heat pump
device for transferring heat from a substance or space at one temperature to another substance or space at a higher temperature. It consists of a compressor, a condenser, a throttle ...
heat transfer
any or all of several kinds of phenomena, considered as mechanisms, that convey energy and entropy from one location to another. The specific mechanisms are usually referred to as convection, ...
heath
any of the low evergreen shrubs of the genus Erica, of the family Ericaceae, with about 500 species, most of which are indigenous to South Africa. Some heaths also occur ...
Heath, Sir Edward
Conservative prime minister of Great Britain from 1970 to 1974.
Heathcoat, John
pioneering English inventor of lace-making machinery.
heather
(species Calluna vulgaris), low evergreen shrub of the heath family (Ericaceae), widespread in western Europe and Asia, North America, and Greenland. It is the chief vegetation on many wastelands of ...
heating
process and system of raising the temperature of an enclosed space for the primary purpose of ensuring the comfort of the occupants. By regulating the ambient temperature, heating also serves ...
heatstroke
condition caused by continuous exposure to high temperature and humidity for several hours. The term sunstroke refers to the same disorder when exposure to direct sunlight is the main cause ...
heaven
the dwelling place of God, gods, or other spiritual beings and the abode or state of being of the saved, the elect, or the blessed in the afterlife or in ...
Heaven's Gate
religious group founded in the United States on a belief in unidentified flying objects. Under a variety of names over the years, including Human Individual Metamorphosis, Bo and Peep, and ...
heaves
chronic disorder of the lungs of horses and cows, characterized by difficult breathing and wheezy cough. The symptoms are worsened by vigorous exercise, sudden weather changes, and overfeeding. Heaves resulting ...
Heaviside, Oliver
physicist who predicted the existence of the ionosphere, an electrically conductive layer in the upper atmosphere that reflects radio waves. In 1870 he became a telegrapher, but increasing deafness forced ...
heavy ion
in nuclear physics, any particle with one or more units of electric charge and a mass exceeding that of the helium-4 nucleus (alpha particle). Special types of accelerators are capable ...
heavy metal
genre of rock music that includes a group of related styles that are intense, virtuosic, and powerful. Driven by the aggressive sounds of the distorted electric guitar, heavy metal is ...
heavy oil and tar sand
crude oils below 20° API gravity are usually considered to be heavy. The lighter conventional crudes are often waterflooded to enhance recovery. The injection of water into the reservoir helps ...
heavy water
water composed of deuterium, the hydrogen (q.v.) isotope with a mass double that of ordinary hydrogen, and oxygen. (Ordinary water has a composition represented by H2O.) Thus, heavy water has ...
Heb-Sed
one of the oldest feasts of Egypt, celebrated by the king after 30 years of rule and repeated every three years thereafter. The festival was in the nature of a ...
Hebat
in the religions of Asia Minor, a Hurrian goddess, the consort of the weather god Teshub. She was called Queen of Heaven and was assimilated by the Hittites to their ...
Hebbel, Friedrich
poet and dramatist who added a new psychological dimension to German drama and made original use of Hegel's concepts of history to dramatize conflicts in his historical tragedies. He was ...
Hebe
(from Greek hebe, "young maturity," or "bloom of youth"), daughter of Zeus, the chief god, and his wife Hera.
Heber City
city, seat (1862) of Wasatch county, northern Utah, U.S. Named in 1859 to honour Mormon leader Heber C. Kimball, the original town site contained a fort to protect settlers from ...
Hebert, Anne
French-Canadian poet, novelist, and playwright noted as an original literary stylist. She lived most of her adult life in Paris.
Hebert, Jacques-Rene
political journalist during the French Revolution who became the chief spokesman for the Parisian sansculottes (extreme radical revolutionaries). He and his followers, who were called Hebertists, pressured the Jacobin regime ...
Hebertist
any of the group of extremists of the French Revolution, followers of Jacques-Rene Hebert, who demanded a Revolutionary government that was anti-Christian and dedicated to the eradication of Girondists and ...
Hebra, Ferdinand von
physician who founded the New Vienna school of dermatology, which became a basis for modern dermatology.
Hebraic law
body of ancient Hebrew law codes found in various places in the Old Testament and similar to earlier law codes of ancient Middle Eastern monarchs-such as the Code of Hammurabi, ...
Hebrew
any member of an ancient northern Semitic people that were the ancestors of the Jews. Historians use the term Hebrews to designate the descendants of the patriarchs of the Old ...
Hebrew alphabet
either of two distinct Semitic alphabets-the Early Hebrew and the Classical, or Square, Hebrew. Early Hebrew was the alphabet used by the Jewish nation in the period before the Babylonian ...
Hebrew language
Semitic language of the Northern Central (also called Northwestern) group; it is closely related to Phoenician and Moabite, with which it is often placed by scholars in a Canaanite subgroup. ...
Hebrew literature
the body of written works produced in the Hebrew language and distinct from Jewish literature, which also exists in other languages.
Hebrew Union College
the oldest Jewish seminary in the United States for the training of rabbis, long a stronghold of American Reform Judaism. It was founded in 1875 at Cincinnati, Ohio, by Rabbi ...
Hebrew University of Jerusalem
state-subsidized institution of higher learning in Jerusalem. The foremost university in Israel, it attracts many Jewish students from abroad. Originally inaugurated (1925) on Mount Scopus, it was transferred to Giv'at ...
Hebrews, Letter to the
New Testament letter traditionally attributed to Paul but now widely believed to be the work of a Jewish Christian, perhaps one of Paul's associates. The letter was composed sometime during ...
Hebrides
group of islands extending in an arc off the Atlantic (west) coast of Scotland. They are subdivided into two groups-the Inner Hebrides to the east and the Outer Hebrides to ...
Hebron
city in the southern Judaean Hills, south-southwest of Jerusalem. It is 3,050 feet (930 m) above sea level. In modern times, it was part of mandated Palestine during 1923-48; after ...
Hecataeus Of Miletus
Greek author of an early history and of a book of travels. During the time of the Persian invasion, he tried to dissuade the Ionians from revolt against Persia, and ...
Hecate
(from Greek hekate, "she who works her will"), goddess accepted at an early date into Greek religion but probably derived from the Carians in southwest Asia Minor. In Hesiod she ...
Hecate Strait
passage of the eastern North Pacific, off central British Columbia, Canada. Stretching south from Dixon Entrance 160 mi (260 km) to Queen Charlotte Sound, the waterway, which ranges in width ...