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Footfall
''Footfall'' is a 1985 science fiction novel by American writers Larry Niven and Jerry Pournelle. The book depicts the arrival of members of an alien species called the Fithp that have traveled to the Solar System from Alpha Centauri in a large spacecraft driven by a Bussard ramjet. Their intent is conquest of the planet Earth. Plot The alien Fithp resemble baby elephants with multiple prehensile trunks. They possess more advanced technology than humans, but did not develop any of it on their own. In the distant past on their planet, another species was dominant. The predecessor species badly damaged the environment, rendering itself and many other species extinct, but left behind their knowledge inscribed on large stone cubes from which the Fithp gained their technology. An arms race between two rival herds threatened to render the species extinct, so they wagered to see who would depart in a starship and seek a new home elsewhere. The leadership of the loser formed the ''Cht ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jerry Pournelle
Jerry Eugene Pournelle (; August 7, 1933 – September 8, 2017) was an American scientist in the area of operations research and human factors research, a science fiction writer, essayist, journalist, and one of the first bloggers. In the 1960s and early 1970s, he worked in the aerospace industry, but eventually focused on his writing career. In an obituary in ''Gizmodo'', he is described as "a tireless ambassador for the future." Pournelle's hard science fiction writing received multiple awards. In addition to his solo writing, he wrote several novels with collaborators including Larry Niven. Pournelle served a term as President of the Science Fiction and Fantasy Writers of America. Pournelle's journalism focused primarily on the computer industry, astronomy, and space exploration. From the 1970s until the early 1990s, he contributed to the computer magazine ''Byte'', writing from the viewpoint of an intelligent user, with the oft-cited credo, "We do this stuff so you won't ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Project Orion (nuclear Propulsion)
Project Orion was a study conducted between the 1950s and 1960s by the United States Air Force, DARPA, and NASA for the purpose of identifying the efficacy of a starship directly propelled by a series of explosions of atomic bombs behind the craft— nuclear pulse propulsion. Early versions of this vehicle were proposed to take off from the ground; later versions were presented for use only in space. Six non-nuclear tests were conducted using models. The project was eventually abandoned for multiple reasons, including the Partial Test Ban Treaty, which banned nuclear explosions in space, and concerns over nuclear fallout. The idea of rocket propulsion by combustion of explosive substance was first proposed by Russian explosives expert Nikolai Kibalchich in 1881, and in 1891 similar ideas were developed independently by German engineer Hermann Ganswindt. Robert A. Heinlein mentions powering spaceships with nuclear bombs in his 1940 short story " Blowups Happen". Real life pr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kinetic Bombardment
A kinetic bombardment or a kinetic orbital strike is the hypothetical act of attacking a planetary surface with an inert kinetic projectile from orbit (orbital bombardment), where the destructive power comes from the kinetic energy of the projectile impacting at very high speeds. The concept originated during the Cold War. Typical depictions of the tactic are of a satellite containing a magazine of tungsten rods and a directional thrust system. When a strike is ordered, the launch vehicle brakes one of the rods out of its orbit and into a suborbital trajectory that intersects the target. The rods would typically be shaped to minimize air resistance and maximize velocity upon impact. Kinetic bombardment has the advantage of being able to deliver projectiles from a very high angle at a very high speed, making them extremely difficult to defend against. In addition, projectiles would not require explosive warheads, and—in the simplest designs—would consist enti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Larry Niven
Laurence van Cott Niven (; born April 30, 1938) is an American science fiction writer. His best-known works are '' Ringworld'' (1970), which received Hugo, Locus, Ditmar, and Nebula awards, and, with Jerry Pournelle, '' The Mote in God's Eye'' (1974) and '' Lucifer's Hammer'' (1977). The Science Fiction and Fantasy Writers of America named him the 2015 recipient of the Damon Knight Memorial Grand Master Award. His work is primarily hard science fiction, using big science concepts and theoretical physics. It also often includes elements of detective fiction and adventure stories. His fantasy includes the series '' The Magic Goes Away'', rational fantasy dealing with magic as a non-renewable resource. Biography Niven was born in Los Angeles. He is a great-grandson of Edward L. Doheny, an oil tycoon who drilled the first successful well in the Los Angeles City Oil Field in 1892, and also was subsequently implicated in the Teapot Dome scandal. Niven briefly attended ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
David Langford
David Rowland Langford (born 10 April 1953) is a British author, editor, and critic, largely active within the science fiction field. He publishes the science fiction fanzine and newsletter ''Ansible'', and holds the all-time record for most Hugo Awards, with a total of 29 wins. Personal background David Langford was born and grew up in Newport, Monmouthshire, Wales before studying for a degree in Physics at Brasenose College, Oxford, where he first became involved in science fiction fandom. Langford is married to Hazel and is the brother of the musician and artist Jon Langford. His first job was as a weapons physicist at the Atomic Weapons Research Establishment at Aldermaston, Berkshire from 1975 to 1980. In 1985 he set up a "tiny and informally run software company" with science fiction writer Christopher Priest, called Ansible Information after Langford's news-sheet. The company has ceased trading. Increasing hearing difficulties have reduced Langford's participa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kirkus Reviews
''Kirkus Reviews'' (or ''Kirkus Media'') is an American book review magazine founded in 1933 by Virginia Kirkus (1893–1980). The magazine is headquartered in New York City. ''Kirkus Reviews'' confers the annual Kirkus Prize to authors of fiction, nonfiction Nonfiction, or non-fiction, is any document or media content that attempts, in good faith, to provide information (and sometimes opinions) grounded only in facts and real life, rather than in imagination. Nonfiction is often associated with be ..., and young readers' literature. ''Kirkus Reviews'', published on the first and 15th of each month; previews books before their publication. ''Kirkus'' reviews over 10,000 titles per year. History Virginia Kirkus was hired by Harper & Brothers to establish a children's book department in 1926. The department was eliminated as an economic measure in 1932 (for about a year), so Kirkus left and soon established her own book review service. Initially, she arranged to ge ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hawaii
Hawaii ( ; haw, Hawaii or ) is a state in the Western United States, located in the Pacific Ocean about from the U.S. mainland. It is the only U.S. state outside North America, the only state that is an archipelago, and the only state geographically located within the tropics. Hawaii comprises nearly the entire Hawaiian archipelago, 137 volcanic islands spanning that are physiographically and ethnologically part of the Polynesian subregion of Oceania. The state's ocean coastline is consequently the fourth-longest in the U.S., at about . The eight main islands, from northwest to southeast, are Niihau, Kauai, Oahu, Molokai, Lānai, Kahoolawe, Maui, and Hawaii—the last of these, after which the state is named, is often called the "Big Island" or "Hawaii Island" to avoid confusion with the state or archipelago. The uninhabited Northwestern Hawaiian Islands make up most of the Papahānaumokuākea Marine National Monument, the United States' largest prot ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Saturn
Saturn is the sixth planet from the Sun and the second-largest in the Solar System, after Jupiter. It is a gas giant with an average radius of about nine and a half times that of Earth. It has only one-eighth the average density of Earth; however, with its larger volume, Saturn is over 95 times more massive. Saturn's interior is most likely composed of a core of iron–nickel and rock (silicon and oxygen compounds). Its core is surrounded by a deep layer of metallic hydrogen, an intermediate layer of liquid hydrogen and liquid helium, and finally, a gaseous outer layer. Saturn has a pale yellow hue due to ammonia crystals in its upper atmosphere. An electrical current within the metallic hydrogen layer is thought to give rise to Saturn's planetary magnetic field, which is weaker than Earth's, but which has a magnetic moment 580 times that of Earth due to Saturn's larger size. Saturn's magnetic field strength is around one-twentieth of Jupiter's. The outer atmosphere is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
National Security Advisor (United States)
The Assistant to the President for National Security Affairs (APNSA), commonly referred to as the National Security Advisor (NSA),The National Security Advisor and Staff: p. 1. is a senior aide in the Executive Office of the President, based at the West Wing of the White House. The National Security Advisor serves as the principal advisor to the President of the United States on all national security issues. The National Security Advisor is appointed by the President and does not require confirmation by the United States Senate. An appointment of a three- or four-star General to the role requires Senate confirmation to maintain that rank in the new position. The National Security Advisor participates in meetings of the National Security Council (NSC) and usually chairs meetings of the Principals Committee of the NSC with the Secretary of State and Secretary of Defense (those meetings not attended by the President). The NSA also sits on the Homeland Security Council (HSC).The ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spaceplane
A spaceplane is a vehicle that can fly and glide like an aircraft in Earth's atmosphere and maneuver like a spacecraft in outer space. To do so, spaceplanes must incorporate features of both aircraft and spacecraft. Orbital spaceplanes tend to be more similar to conventional spacecraft, while sub-orbital spaceplanes tend to be more similar to fixed-wing aircraft. All spaceplanes to date have been rocket-powered but then landed as unpowered gliders. Four types of spaceplanes have successfully launched to orbit, reentered Earth's atmosphere, and landed: the U.S. Space Shuttle, Russian Buran, U.S. X-37, and the Chinese CSSHQ. Another, Dream Chaser, is under development in the U.S. As of 2019 all past, current, and planned orbital vehicles launch vertically on a separate rocket. Orbital spaceflight takes place at high velocities, with orbital kinetic energies typically at least 50 times greater than suborbital trajectories. Consequently, heavy heat shielding is requi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lucifer
Lucifer is one of various figures in folklore associated with the planet Venus. The entity's name was subsequently absorbed into Christianity as a name for the devil. Modern scholarship generally translates the term in the relevant Bible passage ( Isaiah 14:12), where the Greek Septuagint reads ὁ ἑωσφόρος ὁ πρωὶ, as "morning star" or "shining one" rather than as a proper noun, Lucifer, as found in the Latin Vulgate. As a name for the Devil in Christian theology, the more common meaning in English, "Lucifer" is the rendering of the Hebrew word he, הֵילֵל, hêlēl, label=none, (pronunciation: ''hay-lale'') in Isaiah given in the King James Version of the Bible. The translators of this version took the word from the Latin Vulgate, Originally published New York: The MacMillan Co., 1923. which translated by the Latin word (uncapitalized), meaning "the morning star", "the planet Venus", or, as an adjective, "light-bringing". As a name for the planet in its ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Michael (archangel)
Michael (; he, מִיכָאֵל, lit=Who is like El od, translit=Mīḵāʾēl; el, Μιχαήλ, translit=Mikhaḗl; la, Michahel; ar, ميخائيل ، مِيكَالَ ، ميكائيل, translit=Mīkāʾīl, Mīkāl, Mīkhāʾīl), also called Saint Michael the Archangel, Saint Michael the Taxiarch in Orthodoxy and Archangel Michael is an archangel in Judaism, Christianity, Islam and the Baha'i faith. The earliest surviving mentions of his name are in 3rd- and 2nd-century BC Jewish works, often but not always apocalyptic, where he is the chief of the angels and archangels and responsible for the care of Israel. Christianity adopted nearly all the Jewish traditions concerning him, and he is mentioned explicitly in Revelation 12:7–12, where he does battle with Satan, and in the Epistle of Jude, where the author denounces heretics by contrasting them with Michael. Second Temple Jewish writings The earliest surviving mention of Michael is in a 3rd century BC Jew ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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