Canadian publishing and information services company. Its specialty reporting covers the fields of law, business and finance, medicine, taxation, and accounting.
the evolution or absorption of heat when electric current passes through a circuit composed of a single material that has a temperature difference along its length. This transfer of heat ...
U.S. electrical engineer and inventor whose discoveries in the field of alternating-current phenomena led to the development of successful alternating-current motors. He was also a founder of the U.S. electrical ...
American civil engineer and president of the Pennsylvania Railroad Company who consolidated a network of railroad lines from Philadelphia to various cities in the Midwest and the South, extending as ...
Scottish Victorian poet who is best remembered for his sombre, imaginative poem "The City of Dreadful Night," a symbolic expression of his horror of urban dehumanization.
Scottish poet whose best verse foreshadowed some of the attitudes of the Romantic movement. His poetry also gave expression to the achievements of Newtonian science and to an England reaching ...
Scottish geologist, naturalist, and explorer who was the first European to enter several regions of eastern Africa and whose writings are outstanding contributions to geographical knowledge, exceptional for their careful ...
English physicist who was the joint recipient, with Clinton J. Davisson of the United States, of the Nobel Prize for Physics in 1937 for demonstrating that electrons undergo diffraction, a ...
English physicist who helped revolutionize the knowledge of atomic structure by his discovery of the electron (1897). He received the Nobel Prize for Physics in 1906 and was knighted in ...
Scottish naturalist whose clearly written books on biology and attempts to correlate science and religion led to wider public awareness of progress in the biological sciences.
section of Metropolitan Bangkok, Thailand's capital and largest city. Located on the west bank of the Chao Phraya River, Thon Buri was formerly a separate city and changwat (province) from ...
German-Austrian pioneer in the industrialization of furniture manufacture, whose experiments in the production of bentwood furniture widely influenced both contemporary and modern styles and whose functional and exquisitely designed chairs ...
town, Haute-Savoie departement, Rhone-Alpes region, southeastern France, on a lacustrine terrace overlooking the southern shore of Lake Geneva near the mouth of the Dranse River. It was the capital of ...
deity common to all the early Germanic peoples, a great warrior represented as a red-bearded, middle-aged man of enormous strength, an implacable foe to the harmful race of giants but ...
missile initially developed by the U.S. Air Force as an intermediate-range ballistic missile. It was subsequently modified to serve as the first stage of launch vehicles for several spacecraft. The ...
the second largest hollow space of the body. It is enclosed by the ribs, the vertebral column, and the sternum, or breastbone, and is separated from the abdominal cavity (the ...
compression of the lungs and thoracic (chest) cavity that occurs during a breath-holding dive under water. During the descent, an increase in pressure causes air spaces and gas pockets within ...
neurohormone secreted in arthropods. After being released by neurosecretory cells of the brain, the thoracotropic hormone is carried by the blood to the prothoracic glands, where it stimulates the release ...
in amphibians, reptiles, birds, and mammals, the chest. In humans and other mammals the chest is that part of the body between the neck and abdomen. In humans the bony ...
leading Dutch political figure of the mid-19th century who, as prime minister (1849-53, 1862-66, 1871-72), consolidated the parliamentary system created by the constitution of 1848.
American essayist, poet, and practical philosopher, renowned for having lived the doctrines of Transcendentalism as recorded in his masterwork, Walden (1854), and for having been a vigorous ...
Icelandic-born Scandinavian leader of an early colonizing expedition to North America. His travels were recounted in the Saga of Erik and the Tale of the Greenlanders.
thorium dioxide mineral (ThO2) that is very heavy, hard, and coloured dark gray to brownish black or bluish black. Originally found as waterworn grains and crystals in the gem gravels ...
thorium silicate, ThSiO4, one of the most important thorium minerals. Almost always altered by hydration, it occurs in syenite near Brevik, Nor., and in the gem gravels of Sri Lanka. ...
(Th), radioactive chemical element of the actinide series, in Group IIIb of the periodic table, atomic number 90; it is a useful nuclear-reactor fuel. Discovered (1828) by Jons Jacob Berzelius, ...
dense, scrublike vegetation characteristic of dry subtropical and warm temperate areas with a seasonal rainfall averaging 250 to 500 millimetres (about 10 to 20 inches). This vegetation covers a large ...
Dutch painter, designer, and decorator in the Art Nouveau style. He was an important figure in modern religious art, best known for his use of symbolism in stained-glass windows.
American psychologist whose work on animal behaviour and the learning process led to the theory of connectionism, which states that behavioral responses to specific stimuli are established through a process ...
notable series of school dictionaries widely used in the United States. Their content is based on the theories of Edward Lee Thorndike, an educational psychologist, and Clarence Lewis Barnhart, lexicographer ...
the wreath of thorns was placed on the head of Jesus Christ at his crucifixion, whereby the Roman soldiers mocked his title of "King of the Jews." A relic purported ...
American singer and songwriter who performed in the tradition of classic blues singers such as Bessie Smith and Memphis Minnie. Her work inspired imitation by Elvis Presley and Janis Joplin, ...
English naval architect and engineer who made fundamental improvements in the design and machinery of torpedo boats and built the first torpedo boat for the Royal Navy.
city, regional municipality of Niagara, southeastern Ontario, Canada. It lies along the Welland Ship Canal, 4 miles (6.5 km) south of St. Catharines. Founded in 1788 and named after a ...
breed of horse developed in England for racing and jumping (see ). The origin of the Thoroughbred may be traced back to records indicating that a stock of Arab and ...
American inventor of the ring spinning machine (1828), which by the 1860s had largely replaced Samuel Crompton's spinning mule in the world's textile mills because of its greater productivity and ...
Australian athlete, who was the most successful swimmer in that country's history, accumulating five Olympic gold medals and 11 world championship titles between 1998 and 2004.
one of the most accomplished all-around athletes in history, who in 1950 was selected by American sportswriters and broadcasters as the greatest American athlete and the greatest gridiron football player ...
sculptor, prominent in the Neoclassical period, who was the first internationally acclaimed Danish artist. In the 20th-century reevaluation of Neoclassicism, however, Thorvaldsen's reputation outside Denmark has declined, and works once ...
in Egyptian religion, a god of the moon, of reckoning, of learning, and of writing. He was held to be the inventor of writing, the creator of languages, the scribe, ...
French statesman, bibliophile, and historiographer whose detached, impartial approach to the events of his own period made him a pioneer in the scientific approach to history.
covert symbolic responses to intrinsic (arising from within) or extrinsic (arising from the environment) stimuli. Thought, or thinking, is considered to mediate between inner activity and external stimuli.
traditionally, the three fundamental laws of logic: (1) the law of contradiction, (2) the law of excluded middle (or third), and (3) the principle of identity. That is, (1) for ...
collection of Oriental stories of uncertain date and authorship whose tales of Aladdin, Ali Baba, and Sindbad the Sailor have almost become part of Western folklore.
(1899-1903), Colombian civil war between Liberals and Conservatives that resulted in between 60,000 and 130,000 deaths, extensive property damage, and national economic ruin.
group of more than 1,500 small isles in the St. Lawrence River, North America, extending for a distance of 80 miles (128 km) from the Prince Edward Peninsula to Brockville, ...
city, Ventura county, southern California, U.S. Situated in the Conejo (Spanish: "Rabbit") Valley along the Ventura-Los Angeles county line, it lies 40 miles (60 km) west of Los Angeles. Originally ...
campaign undertaken in 1860 by Giuseppe Garibaldi that overthrew the Bourbon Kingdom of the Two Sicilies (Naples) and permitted the union of southern Italy and Sicily with the north. The ...
language spoken by the inhabitants of Thrace primarily in pre-Greek and early Greek times. Generally assumed to be an Indo-European language, Thracian is known from proper names, glosses in Greek ...
teacher, journalist, and socialist leader who was the initiator of the Thrane movement in Norway that sought to better the condition of urban and rural labourers.
any of numerous New World birds with downcurved bills, noted for noisy foraging on the ground in dense thickets and for loud varied songs. The 17 species, of the family ...
