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Doorways In The Sand
''Doorways in the Sand'' is a science fiction novel by American writer Roger Zelazny. Featuring both detective fiction and comic elements, it was originally published in serial form in the magazine ''Analog Science Fiction and Science Fact''; the hardcover edition was first published in 1976 and the paperback in 1977. Zelazny wrote the whole story in one draft, no rewrites and it subsequently became one of his own five personal favorites in all his work. ''Doorways in the Sand'' was nominated to the Nebula and Hugo awards. Plot introduction A galactic confederation of alien civilizations exchanges the star-stone and the Rhennius machine, mysterious alien artifacts, for the Mona Lisa and the British Crown Jewels as part of the process of admitting Earth to its organization. The star-stone is missing, and Fred Cassidy, a perpetual student and acrophile, is the last known person to have seen it. Various criminals, Anglophile zealots, government agents and aliens torture, shoo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Roger Zelazny
Roger Joseph Zelazny (May 13, 1937 – June 14, 1995) was an American poet and writer of fantasy and science fiction short stories and novels, best known for ''The Chronicles of Amber''. He won the Nebula Award three times (out of 14 nominations) and the Hugo Award six times (also out of 14 nominations), including two Hugos for novels: the serialized novel ''...And Call Me Conrad'' (1965), subsequently published under the title ''This Immortal'' (1966) and then the novel ''Lord of Light'' (1967). Biography Zelazny was born in Euclid, Ohio, the only child of Polish immigrant Joseph Frank Żelazny and Irish-American Josephine Flora Sweet. In high school, he became the editor of the school newspaper and joined the Creative Writing Club. In the fall of 1955, he began attending Case Western Reserve University, Western Reserve University and graduated with a B.A. in English in 1959. He was accepted to Columbia University in New York and specialized in Elizabethan and Jacobean ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
British Crown Jewels
The Crown Jewels of the United Kingdom, originally the Crown Jewels of England, are a collection of royal ceremonial objects kept in the Tower of London which include the coronation regalia and vestments worn by British monarchs. Symbols of over 800 years of monarchy, the coronation regalia are the only working set in Europe and the collection is the most historically complete of any regalia in the world. Objects used to invest and crown British monarchs variously denote their role as head of state of the United Kingdom and other countries of the Commonwealth, Supreme Governor of the Church of England, and head of the British armed forces. They feature heraldic devices and national emblems of England, Scotland, Wales and Northern Ireland. Use of regalia by monarchs in England can be traced back to when it was converted to Christianity in the Early Middle Ages. A permanent set of coronation regalia, once belonging to Edward the Confessor, was established after he was made a sai ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wombat
Wombats are short-legged, muscular quadrupedal marsupials that are native to Australia. They are about in length with small, stubby tails and weigh between . All three of the extant species are members of the family Vombatidae. They are adaptable and habitat tolerant, and are found in forested, mountainous, and heathland areas of southern and eastern Australia, including Tasmania, as well as an isolated patch of about in Epping Forest National Park in central Queensland. Etymology The name "wombat" comes from the now-nearly extinct Dharug language spoken by the aboriginal Dharug people, who originally inhabited the Sydney area. It was first recorded in January 1798, when John Price and James Wilson, a white man who had adopted aboriginal ways, visited the area of what is now Bargo, New South Wales. Price wrote: "We saw several sorts of dung of different animals, one of which Wilson called a "Whom-batt", which is an animal about 20 inches high, with short legs and a thick bod ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Subconscious
In psychology, the subconscious is the part of the mind that is not currently of focal awareness. Scholarly use of the term The word ''subconscious'' represents an anglicized version of the French ''subconscient'' as coined in 1889 by the psychologist Pierre Janet (1859–1947), in his doctorate of letters thesis, ''De l'Automatisme Psychologique''. Janet argued that underneath the layers of critical-thought functions of the conscious mind lay a powerful awareness that he called the subconscious mind.Henri F. Ellenberger, ''The Discovery of the Unconscious'' (1970) In the strict psychological sense, the adjective is defined as "operating or existing outside of consciousness". Locke and Kristof write that there is a limit to what can be held in conscious focal awareness, an alternative storehouse of one's knowledge and prior experience is needed, which they label the subconscious. Psychoanalysis Sigmund Freud used the term "subconscious" in 1893 to describe associations and i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geology
Geology () is a branch of natural science concerned with Earth and other astronomical objects, the features or rocks of which it is composed, and the processes by which they change over time. Modern geology significantly overlaps all other Earth sciences, including hydrology, and so is treated as one major aspect of integrated Earth system science and planetary science. Geology describes the structure of the Earth on and beneath its surface, and the processes that have shaped that structure. It also provides tools to determine the relative and absolute ages of rocks found in a given location, and also to describe the histories of those rocks. By combining these tools, geologists are able to chronicle the geological history of the Earth as a whole, and also to demonstrate the age of the Earth. Geology provides the primary evidence for plate tectonics, the evolutionary history of life, and the Earth's past climates. Geologists broadly study the properties and processes of E ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Laboratory
A laboratory (; ; colloquially lab) is a facility that provides controlled conditions in which scientific or technological research, experiments, and measurement may be performed. Laboratory services are provided in a variety of settings: physicians' offices, clinics, hospitals, and regional and national referral centers. Overview The organisation and contents of laboratories are determined by the differing requirements of the specialists working within. A physics laboratory might contain a particle accelerator or vacuum chamber, while a metallurgy laboratory could have apparatus for casting or refining metals or for testing their strength. A chemist or biologist might use a wet laboratory, while a psychologist's laboratory might be a room with one-way mirrors and hidden cameras in which to observe behavior. In some laboratories, such as those commonly used by computer scientists, computers (sometimes supercomputers) are used for either simulations or the analysis of data. Scient ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cutting
Cutting is the separation or opening of a physical object, into two or more portions, through the application of an acutely directed force. Implements commonly used for wikt:cut, cutting are the knife and saw, or in medicine and science the scalpel and microtome. However, any sufficiently sharp object is capable of cutting if it has a hardness sufficiently larger than the object being cut, and if it is applied with sufficient force. Even liquids can be used to cut things when applied with sufficient force (see water jet cutter). Cutting is a compression (physical), compressive and shearing (physics), shearing phenomenon, and occurs only when the total stress (physics), stress generated by the cutting implement exceeds the ultimate Strength of materials, strength of the material of the object being cut. The simplest applicable equation is: \text = or \tau=\frac The stress generated by a cutting implement is directly proportional to the force with which it is applied, and in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Academic Degree
An academic degree is a qualification awarded to students upon successful completion of a course of study in higher education, usually at a college or university. These institutions commonly offer degrees at various levels, usually including undergraduate degrees, master's, and doctorates, often alongside other academic certificates and professional degrees. The most common undergraduate degree is the bachelor's degree, although in some countries there are lower level higher education qualifications that are also titled degrees (e.g. associate degrees and foundation degrees). History Emergence of the doctor's and master's degrees and the licentiate The doctorate (Latin: ''doceo'' "I teach") appeared in medieval Europe as a license to teach (Latin: ''licentia docendi'') at a medieval university. Its roots can be traced to the early church when the term "doctor" referred to the Apostles, church fathers and other Christian authorities who taught and interpreted the Bible ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cryogenically
In physics, cryogenics is the production and behaviour of materials at very low temperatures. The 13th IIR International Congress of Refrigeration (held in Washington DC in 1971) endorsed a universal definition of “cryogenics” and “cryogenic” by accepting a threshold of 120 K (or –153 °C) to distinguish these terms from the conventional refrigeration. This is a logical dividing line, since the normal boiling points of the so-called permanent gases (such as helium, hydrogen, neon, nitrogen, oxygen, and normal air) lie below 120K while the Freon refrigerants, hydrocarbons, and other common refrigerants have boiling points above 120K. The U.S. National Institute of Standards and Technology considers the field of cryogenics as that involving temperatures below -153 Celsius (120K; -243.4 Fahrenheit) Discovery of superconducting materials with critical temperatures significantly above the boiling point of nitrogen has provided new interest in reliable, low cost methods ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Crystalline
A crystal or crystalline solid is a solid material whose constituents (such as atoms, molecules, or ions) are arranged in a highly ordered microscopic structure, forming a crystal lattice that extends in all directions. In addition, macroscopic single crystals are usually identifiable by their geometrical shape, consisting of flat faces with specific, characteristic orientations. The scientific study of crystals and crystal formation is known as crystallography. The process of crystal formation via mechanisms of crystal growth is called crystallization or solidification. The word ''crystal'' derives from the Ancient Greek word (), meaning both "ice" and "rock crystal", from (), "icy cold, frost". Examples of large crystals include snowflakes, diamonds, and table salt. Most inorganic solids are not crystals but polycrystals, i.e. many microscopic crystals fused together into a single solid. Polycrystals include most metals, rocks, ceramics, and ice. A third category of s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Perpetual Student
A perpetual student or career student is a college or university attendee who re-enrolls for several years more than is necessary to obtain a given degree, or who pursues multiple terminal degrees. Perpetual students are similar to polymaths, and might publish or work in several fields. Examples * Luciano Baietti (born September 1, 1947) holds fifteen academic degrees, including the subjects of physical education, law, literature, philosophy, sociology, criminology, and military strategy. The Guinness Book of World Records officially recognizes Baietti as the most graduated living person in the world. * Dr. Robert W. McGee - Holder of 23 academic degrees including 13 doctorates. * Dr. Bruce Berry (1940-2014), notable for being a school crossing guard, having retired from a career including technical document translation for Agfa-Gevaert, working for the Post Office, and teaching, took his first degree from Manchester University in 1963. He continued to study from the 1970s onwards ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Host (biology)
In biology and medicine, a host is a larger organism that harbours a smaller organism; whether a parasite, parasitic, a mutualism (biology), mutualistic, or a commensalism, commensalist ''guest'' (symbiont). The guest is typically provided with nourishment and shelter. Examples include animals playing host to parasitic worms (e.g. nematodes), cell (biology), cells harbouring pathogenic (disease-causing) viruses, a Fabaceae, bean plant hosting mutualistic (helpful) Rhizobia, nitrogen-fixing bacteria. More specifically in botany, a host plant supplies nutrient, food resources to micropredators, which have an evolutionarily stable strategy, evolutionarily stable relationship with their hosts similar to ectoparasitism. The host range is the collection of hosts that an organism can use as a partner. Symbiosis Symbiosis spans a wide variety of possible relationships between organisms, differing in their permanence and their effects on the two parties. If one of the partners in an ass ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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