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Camouflage (novel)
''Camouflage'' is a 2004 science fiction novel by American writer Joe Haldeman. It won the James Tiptree, Jr. Award in 2004 and the Nebula Award for Best Novel in 2005. Parts of the novel were originally serialized in ''Analog Science Fiction and Fact'' (March, April and May, 2004). Plot summary A million years prior to the dawn of ''Homo sapiens'', two immortal, shapeshifting aliens roam the Earth with little memory of their origin or their purpose. In the year 2019, an artifact is discovered off the coast of Samoa, buried deep beneath the ocean floor. The mysterious find attracts the alien beings—the "changeling" and the "chameleon"—to Samoa, where one ponders the meaning of the object and the other speculates on its relationship to each of them. Both immortals seek each other for different reasons: one harbours good intentions toward humanity, while the other is extremely hostile. Plot A million years before the rise of humans, the changeling arrives on Earth from M ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
WikiProject Novels
A WikiProject, or Wikiproject, is a Wikimedia movement affinity group for contributors with shared goals. WikiProjects are prevalent within the largest wiki, Wikipedia, and exist to varying degrees within sister projects such as Wiktionary, Wikiquote, Wikidata, and Wikisource. They also exist in different languages, and translation of articles is a form of their collaboration. During the COVID-19 pandemic, CBS News noted the role of Wikipedia's WikiProject Medicine in maintaining the accuracy of articles related to the disease. Another WikiProject that has drawn attention is WikiProject Women Scientists, which was profiled by '' Smithsonian'' for its efforts to improve coverage of women scientists which the profile noted had "helped increase the number of female scientists on Wikipedia from around 1,600 to over 5,000". On Wikipedia Some Wikipedia WikiProjects are substantial enough to engage in cooperative activities with outside organizations relevant to the field at issue. For e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Killer Whale
The orca or killer whale (''Orcinus orca'') is a toothed whale belonging to the oceanic dolphin family, of which it is the largest member. It is the only extant species in the genus ''Orcinus'' and is recognizable by its black-and-white patterned body. A cosmopolitan species, orcas can be found in all of the world's oceans in a variety of marine environments, from Arctic and Antarctic regions to tropical seas. Orcas have a diverse diet, although individual populations often specialize in particular types of prey. Some feed exclusively on fish, while others hunt marine mammals such as seals and other species of dolphin. They have been known to attack baleen whale calves, and even adult whales. Orcas are apex predators, as they have no natural predators. They are highly social; some populations are composed of very stable matrilineal family groups (pods) which are the most stable of any animal species. Their sophisticated hunting techniques and vocal behaviours, which are o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Plutonium
Plutonium is a radioactive chemical element with the symbol Pu and atomic number 94. It is an actinide metal of silvery-gray appearance that tarnishes when exposed to air, and forms a dull coating when oxidized. The element normally exhibits six allotropes and four oxidation states. It reacts with carbon, halogens, nitrogen, silicon, and hydrogen. When exposed to moist air, it forms oxides and hydrides that can expand the sample up to 70% in volume, which in turn flake off as a powder that is pyrophoric. It is radioactive and can accumulate in bones, which makes the handling of plutonium dangerous. Plutonium was first synthetically produced and isolated in late 1940 and early 1941, by a deuteron bombardment of uranium-238 in the cyclotron at the University of California, Berkeley. First, neptunium-238 ( half-life 2.1 days) was synthesized, which subsequently beta-decayed to form the new element with atomic number 94 and atomic weight 238 (half-life 88 years). Since ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Density
Density (volumetric mass density or specific mass) is the substance's mass per unit of volume. The symbol most often used for density is ''ρ'' (the lower case Greek letter rho), although the Latin letter ''D'' can also be used. Mathematically, density is defined as mass divided by volume: : \rho = \frac where ''ρ'' is the density, ''m'' is the mass, and ''V'' is the volume. In some cases (for instance, in the United States oil and gas industry), density is loosely defined as its weight per unit volume, although this is scientifically inaccurate – this quantity is more specifically called specific weight. For a pure substance the density has the same numerical value as its mass concentration. Different materials usually have different densities, and density may be relevant to buoyancy, purity and packaging. Osmium and iridium are the densest known elements at standard conditions for temperature and pressure. To simplify comparisons of density across different s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Apia
Apia () is the Capital (political), capital and largest city of Samoa, as well as the nation's only city. It is located on the central north coast of Upolu, Samoa's second-largest island. Apia falls within the political district (''itūmālō'') of Tuamasaga. The Apia Urban Area (generally known as the City of Apia) has a population of 37,391 (2016 census). Its geographic boundaries extend roughly from Letogo village to the newer, industrialized region of Apia known as "Vaitele". History Apia was originally a small village (the 1800 population was 304), from which the country's capital took its name. Apia Village still exists within the larger modern capital of Apia, which has grown into a sprawling urban area that encompasses many villages. Like every other settlement in the country, Apia Village has its own ''matai'' (leaders) and ''fa'alupega'' (genealogy and customary greetings) according to fa'a Samoa. The modern city of Apia was founded in the 1850s, and it has been ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Psychiatric Hospital
Psychiatric hospitals, also known as mental health hospitals, behavioral health hospitals, are hospitals or wards specializing in the treatment of severe mental disorders, such as schizophrenia, bipolar disorder, eating disorders, dissociative identity disorder, major depressive disorder and many others. Psychiatric hospitals vary widely in their size and grading. Some hospitals may specialize only in short-term or outpatient therapy for low-risk patients. Others may specialize in the temporary or permanent containment of patients who need routine assistance, treatment, or a specialized and controlled environment due to a psychiatric disorder. Patients often choose voluntary commitment, but those whom psychiatrists believe to pose significant danger to themselves or others may be subject to involuntary commitment and involuntary treatment. Psychiatric hospitals may also be called psychiatric wards/units (or "psych" wards/units) when they are a subunit of a regular hospital. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eidetic Memory
Eidetic memory ( ; more commonly called photographic memory or total recall) is the ability to recall an image from memory with high precision—at least for a brief period of time—after seeing it only onceThe terms ''eidetic memory'' and ''photographic memory'' are often used interchangeably: * * * * * and without using a mnemonic device.Eidetic image , psychology ''Encyclopædia Britannica'' online Although the terms ''eidetic memory'' and ''photographic memory'' are popularly used interchangeably, they are also distinguished, with ''eidetic memory'' referring to the ability to see an object for a few minutes after it is no longer present and ''photographic memory'' referring to the ability to recall pages of text ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Maasai People
The Maasai (; sw, Wamasai) are a Nilotic ethnic group inhabiting northern, central and southern Kenya and northern Tanzania. They are among the best-known local populations internationally due to their residence near the many game parks of the African Great Lakes and their distinctive customs and dress.Maasai - Introduction Jens Fincke, 2000–2003 The Maasai speak the Maa language (ɔl Maa), a member of the Nilotic language family that is related to the , |
Alexander The Great
Alexander III of Macedon ( grc, wikt:Ἀλέξανδρος, Ἀλέξανδρος, Alexandros; 20/21 July 356 BC – 10/11 June 323 BC), commonly known as Alexander the Great, was a king of the Ancient Greece, ancient Greek kingdom of Macedonia (ancient kingdom), Macedon. He succeeded his father Philip II of Macedon, Philip II to the throne in 336 BC at the age of 20, and spent most of his ruling years conducting a lengthy military campaign throughout Western Asia and ancient Egypt, Egypt. By the age of thirty, he had created one of the List of largest empires, largest empires in history, stretching from Greece to northwestern Historical India, India. He was undefeated in battle and is widely considered to be one of history's greatest and most successful military commanders. Until the age of 16, Alexander was tutored by Aristotle. In 335 BC, shortly after his assumption of kingship over Macedon, he Alexander's Balkan campaign, campaigned in the Balkans and reasserted control ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ancient Near East
The ancient Near East was the home of early civilizations within a region roughly corresponding to the modern Middle East: Mesopotamia (modern Iraq, southeast Turkey, southwest Iran and northeastern Syria), ancient Egypt, ancient Iran ( Elam, Media, Parthia and Persis), Anatolia/Asia Minor and the Armenian highlands (Turkey's Eastern Anatolia Region, Armenia, northwestern Iran, southern Georgia, and western Azerbaijan), the Levant (modern Syria, Lebanon, Israel, Palestine, and Jordan), Cyprus and the Arabian Peninsula. The ancient Near East is studied in the fields of Ancient Near East studies, Near Eastern archaeology and ancient history. The history of the ancient Near East begins with the rise of Sumer in the 4th millennium BC, though the date it ends varies. The term covers the Bronze Age and the Iron Age in the region, until either the conquest by the Achaemenid Empire in the 6th century BC, that by the Macedonian Empire in the 4th century BC, or the Muslim conquest ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Admiral
Admiral is one of the highest ranks in some navies. In the Commonwealth nations and the United States, a "full" admiral is equivalent to a "full" general in the army or the air force, and is above vice admiral and below admiral of the fleet, or fleet admiral. Etymology The word in Middle English comes from Anglo-French , "commander", from Medieval Latin , . These evolved from the Arabic () – (), “king, prince, chief, leader, nobleman, lord, a governor, commander, or person who rules over a number of people,” and (), the Arabic article answering to “the.” In Arabic, admiral is also represented as (), where () means the sea. The 1818 edition of Samuel Johnson's '' A Dictionary of the English Language'', edited and revised by the Rev. Henry John Todd, states that the term “has been traced to the Arab. emir or amir, lord or commander, and the Gr. , the sea, q. d. ''prince of the sea''. The word is written both with and without the d, in other languages, as we ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
