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Shadows Of Forgotten Ancestors (book)
''Shadows of Forgotten Ancestors: A Search for Who We Are'' is a 1992 book by Carl Sagan and Ann Druyan. ''Shadows of Forgotten Ancestors''. The authors give a summary account of the evolutionary on Earth, with particular focus upon certain traits central to human nature and the discussion of where their precursors began to develop in other species. In the final chapters, they examine in detail, comparing the details between anatomically modern humans and the |
Carl Sagan
Carl Edward Sagan (; ; November 9, 1934December 20, 1996) was an American astronomer, planetary scientist, cosmologist, astrophysicist, astrobiologist, author, and science communicator. His best known scientific contribution is research on extraterrestrial life, including experimental demonstration of the production of amino acids from basic chemicals by radiation. Sagan assembled the first physical messages sent into space, the Pioneer plaque and the Voyager Golden Record, universal messages that could potentially be understood by any extraterrestrial intelligence that might find them. Sagan argued the hypothesis, accepted since, that the high surface temperatures of Venus can be attributed to, and calculated using, the greenhouse effect.Extract of page 14 Initially an assistant professor at [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Extant
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Extant is the opposite of the word extinct. It may refer to: * Extant hereditary titles * Extant literature, surviving literature, such as ''Beowulf'', the oldest extant manuscript written in English * Extant taxon, a taxon which is not extinct, such as an extant species * Extant Theatre Company, a disability arts organisation * ''Extant'' (TV series), an American television series * Hank Hall, also known as Extant, a DC Comics supervillain See also * Extent (other) Extent may refer to: Computing * Extent (file systems), a contiguous region of computer storage medium reserved for a file * Extent File System, a discontinued file system implementation named after the contiguous region * Extent, a chunk of s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ballantine Books Books
Ballantine may refer to: *Tsubakimoto_Chain#North_America, Ballantine Inc., a manufacturer of underground construction equipment *Ballantine Books, an American publishing company *P. Ballantine and Sons Brewing Company, Ballantine Brewery, an American brewery, producer of Ballantine Ale *Ballantine's, a range of Scotch whiskies *Ballantine scale, a standard for measuring shoreline exposure People *Ballantine (surname) Places *Ballantine, Montana, a US census-designated place *John Ballantine House, a historic home and museum See also *Balanchine *Ballentine (other) *Ballantyne *Bellenden *Ballenden *Ballandean, Queensland *Ogilvy-Wedderburn_baronets#Wedderburn,_later_Ogilvy-Wedderburn_baronets,_of_Balindean_(1803), Balindean, the spelling used by the Ogilvy-Wedderburn baronets {{disambig ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Random House Books
In common usage, randomness is the apparent or actual lack of pattern or predictability in events. A random sequence of events, symbols or steps often has no order and does not follow an intelligible pattern or combination. Individual random events are, by definition, unpredictable, but if the probability distribution is known, the frequency of different outcomes over repeated events (or "trials") is predictable.Strictly speaking, the frequency of an outcome will converge almost surely to a predictable value as the number of trials becomes arbitrarily large. Non-convergence or convergence to a different value is possible, but has probability zero. For example, when throwing two dice, the outcome of any particular roll is unpredictable, but a sum of 7 will tend to occur twice as often as 4. In this view, randomness is not haphazardness; it is a measure of uncertainty of an outcome. Randomness applies to concepts of chance, probability, and information entropy. The fields o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
American Non-fiction Books
American(s) may refer to: * American, something of, from, or related to the United States of America, commonly known as the "United States" or "America" ** Americans, citizens and nationals of the United States of America ** American ancestry, people who self-identify their ancestry as "American" ** American English, the set of varieties of the English language native to the United States ** Native Americans in the United States, indigenous peoples of the United States * American, something of, from, or related to the Americas, also known as "America" ** Indigenous peoples of the Americas * American (word), for analysis and history of the meanings in various contexts Organizations * American Airlines, U.S.-based airline headquartered in Fort Worth, Texas * American Athletic Conference, an American college athletic conference * American Recordings (record label), a record label previously known as Def American * American University, in Washington, D.C. Sports teams Soccer * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1992 Non-fiction Books
Year 199 ( CXCIX) was a common year starting on Monday (link will display the full calendar) of the Julian calendar. At the time, it was sometimes known as year 952 ''Ab urbe condita''. The denomination 199 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years. Events By place Roman Empire * Mesopotamia is partitioned into two Roman provinces divided by the Euphrates, Mesopotamia and Osroene. * Emperor Septimius Severus lays siege to the city-state Hatra in Central-Mesopotamia, but fails to capture the city despite breaching the walls. * Two new legions, I Parthica and III Parthica, are formed as a permanent garrison. China * Battle of Yijing: Chinese warlord Yuan Shao defeats Gongsun Zan. Korea * Geodeung succeeds Suro of Geumgwan Gaya, as king of the Korean kingdom of Gaya (traditional date). By topic Religion * Pope Zephyrinus succeeds Pope Victor I, as the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brannon Braga
Brannon Braga (; born August 14, 1965) is an American television producer, director and screenwriter. Best known for his work in the ''Star Trek'' franchise, Braga was a key creative force behind three of the franchise's live action series. He later became an executive producer and writer on several Fox shows including '' 24'', '' Terra Nova'', and ''The Orville''. His film credits include '' Mission: Impossible 2'', ''Star Trek Generations'' and '' Star Trek: First Contact''. He served as an executive producer on the Fox primetime series, '' Cosmos: A Spacetime Odyssey'', a re-launch of the 1980 miniseries hosted by Carl Sagan for which Braga won a Peabody Award, Critics Choice Award, and Producers Guild Award. In addition, Braga has been nominated for three Emmy Awards. Braga also served as writer, executive producer, and co-creator of the drama series '' Salem'', WGN America's first original series. Career Braga started out as an intern on '' Star Trek: The Next Generation'' i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Possible Worlds
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Possible Worlds may refer to: * Possible worlds, concept in philosophy * ''Possible Worlds'' (play), 1990 play by John Mighton ** ''Possible Worlds'' (film), 2000 film by Robert Lepage, based on the play * Possible Worlds (studio) * ''Possible Worlds'', poetry book by Peter Porter * ''Possible Worlds'', book by J. B. S. Haldane * ''Possible Worlds'', 1995 album by Markus Stockhausen See also * * * Possible (other) * World (other) The world is a common name for the whole of human civilization, specifically human experience, history, or the human condition in general, worldwide, i.e. anywhere on Earth. World, worlds or the world may also refer to: Places * Earth (planet), ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Primates
Primates are a diverse order of mammals. They are divided into the strepsirrhines, which include the lemurs, galagos, and lorisids, and the haplorhines, which include the tarsiers and the simians (monkeys and apes, the latter including humans). Primates arose 85–55 million years ago first from small terrestrial mammals, which adapted to living in the trees of tropical forests: many primate characteristics represent adaptations to life in this challenging environment, including large brains, visual acuity, color vision, a shoulder girdle allowing a large degree of movement in the shoulder joint, and dextrous hands. Primates range in size from Madame Berthe's mouse lemur, which weighs , to the eastern gorilla, weighing over . There are 376–524 species of living primates, depending on which classification is used. New primate species continue to be discovered: over 25 species were described in the 2000s, 36 in the 2010s, and three in the 2020s. Primates have large bra ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ann Druyan
Ann Druyan ( ; born June 13, 1949) is an Emmy and Peabody Award-winning American documentary producer and director specializing in the communication of science. She co-wrote the 1980 PBS documentary series ''Cosmos'', hosted by Carl Sagan, whom she married in 1981. She is the creator, producer, and writer of the 2014 sequel, '' Cosmos: A Spacetime Odyssey'' and its sequel series, '' Cosmos: Possible Worlds'', as well as the book of the same name. She directed episodes of both series. In the late 1970s, she became the Creative Director of NASA's Voyager Interstellar Message Project, which produced the golden discs affixed to both the ''Voyager 1'' and ''Voyager 2'' spacecraft. She also published a novel, ''A Famous Broken Heart'', in 1977, and later co-wrote several best selling non-fiction books with Sagan. Early life Druyan was born in Queens, New York, the daughter of Pearl A. () and Harry Druyan, who co-owned a knitwear firm. Druyan's early interest in math a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
History Of Life
The history of life on Earth traces the processes by which living and fossil organisms evolved, from the earliest emergence of life to present day. Earth formed about 4.5 billion years ago (abbreviated as ''Ga'', for ''gigaannum'') and evidence suggests that life emerged prior to 3.7 Ga. Although there is some evidence of life as early as 4.1 to 4.28 Ga, it remains controversial due to the possible non-biological formation of the purported fossils. The similarities among all known present-day species indicate that they have diverged through the process of evolution from a common ancestor. Only a very small percentage of species have been identified: one estimate claims that Earth may have 1 trillion species. * However, only 1.75–1.8 million have been named "A version of this article appears in print on Nov. 9, 2014, Section SR, Page 6 of the New York edition with the headline: Prehistory's Brilliant Future." and 1.8 million documented in a central database. These currently ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pale Blue Dot (book)
''Pale Blue Dot: A Vision of the Human Future in Space'' is a 1994 book by the astronomer Carl Sagan. It is the sequel to Sagan's 1980 book ''Cosmos'' and was inspired by the famous 1990 ''Pale Blue Dot'' photograph, for which Sagan provides a poignant description. In the book, Sagan mixes philosophy about the human place in the universe with a description of the current knowledge about the Solar System. He also details a human vision for the future. Summary The first part of the book examines the claims made throughout history that Earth and the human species are unique. Sagan proposes two reasons for the persistence of the idea of a geocentric, or Earth-centered universe: human pride in our existence, and the threat of torturing those who dissented from it, particularly during the time of the Roman Inquisition. However, he also admits that the scientific tools to prove the Earth orbited the Sun were (until the last few hundred years) not accurate enough to measure effects s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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