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The Man Who Sold The Moon
''The Man Who Sold the Moon'' is a science fiction novella by American author Robert A. Heinlein, written in 1949 and published in 1950. A part of his ''Future History (novel), Future History'' and prequel to "Requiem (short story), Requiem", it covers events around a fictional first Moon landing in 1978 and the schemes of Delos D. Harriman, a businessman who is determined to personally reach and control the Moon. Plot D. D. Harriman, Delos David "D. D." Harriman, "the last of the Robber baron (industrialist), Robber Barons", is obsessed with being the first to travel to—and possess—the Moon. He asks his business partner, George Strong, and other tycoons to invest in the venture. Most dismiss Harriman's plans as foolhardy: Nuclear rocket fuel is scarce as the Blowups Happen, space station that produces it blew up, also destroying the only existing spaceship. The necessary technology for a chemical-fueled rocket stretches the boundaries of current engineering. The end ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hardcover
A hardcover, hard cover, or hardback (also known as hardbound, and sometimes as casebound (At p. 247.)) book is one bookbinding, bound with rigid protective covers (typically of binder's board or heavy paperboard covered with buckram or other cloth, heavy paper, or occasionally Calf-binding, leather). It has a flexible, sewn spine which allows the book to lie flat on a surface when opened. Modern hardcovers may have the pages glued onto the spine in much the same way as paperbacks. Following the ISBN sequence numbers, books of this type may be identified by the abbreviation Hbk. Overview Hardcover books are often printed on acid-free paper, and they are much more durable than paperbacks, which have flexible, easily damaged paper covers. Hardcover books are marginally more costly to manufacture. Hardcovers are frequently protected by artistic dust jackets, but a "jacketless" alternative has increased in popularity: these "paper-over-board" or "jacketless" hardcover bindings forgo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Federal Communications Commission
The Federal Communications Commission (FCC) is an independent agency of the United States government that regulates communications by radio, television, wire, internet, wi-fi, satellite, and cable across the United States. The FCC maintains jurisdiction over the areas of broadband access, fair competition, radio frequency use, media responsibility, public safety, and homeland security. The FCC was established pursuant to the Communications Act of 1934 to replace the radio regulation functions of the previous Federal Radio Commission. The FCC took over wire communication regulation from the Interstate Commerce Commission. The FCC's mandated jurisdiction covers the 50 states, the District of Columbia, and the territories of the United States. The FCC also provides varied degrees of cooperation, oversight, and leadership for similar communications bodies in other countries in North America. The FCC is funded entirely by regulatory fees. It has an estimated fiscal-2022 budg ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Promised Land
In the Abrahamic religions, the "Promised Land" ( ) refers to a swath of territory in the Levant that was bestowed upon Abraham and his descendants by God in Abrahamic religions, God. In the context of the Bible, these descendants are originally understood to have been the Israelites, whose forefather was Jacob, who was a son of Abraham's son Isaac. The concept of the Promised Land largely overlaps with the Land of Israel (Zion) or the Holy Land in a biblical/religious sense and with Canaan or Palestine (region), Palestine in a secular/geographic sense. Although the Book of Numbers provides some definition for the Promised Land's boundaries, they are not delineated with precision, but it is universally accepted that the core areas lie in and around Jerusalem. According to the biblical account, the Promised Land was not inherited until the Conquest of Canaan, Israelite conquest of Canaan, which took place shortly after the Exodus. Biblical narrative The concept of the Promised ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Moses
In Abrahamic religions, Moses was the Hebrews, Hebrew prophet who led the Israelites out of slavery in the The Exodus, Exodus from ancient Egypt, Egypt. He is considered the most important Prophets in Judaism, prophet in Judaism and Samaritanism, and one of the most important prophets in Christianity, Prophets and messengers in Islam, Islam, the Manifestation of God (Baháʼí Faith)#Known messengers, Baháʼí Faith, and Table of prophets of Abrahamic religions, other Abrahamic religions. According to both the Bible and the Quran, God in Abrahamic religions, God dictated the Mosaic Law to Moses, which he Mosaic authorship, wrote down in the five books of the Torah. According to the Book of Exodus, Moses was born in a period when his people, the Israelites, who were an slavery, enslaved minority, were increasing in population; consequently, the Pharaohs in the Bible#In the Book of Exodus, Egyptian Pharaoh was worried that they might ally themselves with New Kingdom of Egypt, Eg ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lunar Colony
The colonization of the Moon is a process or concept employed by some proposals for robotic or human exploitation and settlement endeavours on the Moon. Often used as a synonym for its more specific element of settling the Moon (the establishing and expanding of lunar habitation), lunar or space colonization as a whole has become contested for perpetuating colonialism and its exploitive logic in space. Laying claim to the Moon has been declared illegal through international space law and no state has made such claims, despite having a range of probes and artificial remains on the Moon. While a range of proposals for missions of lunar colonization, exploitation or permanent exploration have been raised, current projects for establishing permanent crewed presence on the Moon are not for colonizing the Moon, but rather focus on building moonbases for exploration and to a lesser extent for exploitation of lunar resources. The commercialization of the Moon is a contentious issue ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pikes Peak
Pikes Peak is the List of mountain ranges of Colorado#Mountain ranges, highest summit of the southern Front Range of the Rocky Mountains in North America. The Ultra-prominent peak, ultra-prominent fourteener is located in Pike National Forest, west of downtown Colorado Springs, Colorado. The town of Manitou Springs, Colorado, Manitou Springs lies at its base. The mountain is named in honor of American explorer Zebulon Pike, even though he was unable to reach the summit. The summit is higher than any point in the United States east of its longitude. Name The band of Ute people who called the Pikes Peak region their home were the Tabeguache, whose name means the "People of Sun Mountain". or "sun", is the Ute language, Ute word that was given by these first people to the mountain that we now call Pikes Peak. (In contrast, the name Tabeguache Peak is now used for a peak further west.) It is thought that the Ute people first arrived in Colorado about 500 A.D., however their ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mass Driver
A mass driver or electromagnetic catapult is a proposed method of non-rocket spacelaunch which would use a linear motor to Acceleration, accelerate and catapult Payload (air and space craft), payloads up to high speeds. Existing and proposed mass drivers use coils of wire energized by electricity to make electromagnets, though a rotary mass driver has also been proposed. Sequential firing of a row of electromagnets accelerates the payload along a path. Although any device used to propel a Ballistics, ballistic payload is technically a mass driver, in this context a mass driver is essentially a coilgun that magnetically accelerates a package consisting of a magnetizable holder containing a payload. Once the payload has been accelerated, the two separate, and the holder is slowed and recycled for another payload. Mass drivers can be used to propel spacecraft in three different ways: A large, ground-based mass driver could launch spacecraft away from Earth, the Moon, or another body ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Colorado Springs, Colorado
Colorado Springs is the most populous city in El Paso County, Colorado, United States, and its county seat. The city had a population of 478,961 at the 2020 United States census, 2020 census, a 15.02% increase since 2010 United States Census, 2010. Colorado Springs is the List of municipalities in Colorado, second-most populous city and List of United States cities by area, most extensive city in the state of Colorado, and the List of United States cities by population, 40th-most-populous city in the United States. It is the principal city of the Colorado Springs metropolitan area, which had 755,105 residents in 2020, and the second-most prominent city of the Front Range Urban Corridor. It is located in east-central Colorado on Fountain Creek (Arkansas River tributary), Fountain Creek, south of Denver. At , the city stands over above sea level. It is near the base of Pikes Peak, which rises above sea level on the eastern edge of the Southern Rocky Mountains. The city is the l ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Peterson Air Force Base
Peterson Space Force Base, previously Peterson Air Force Base, Peterson Field, and Army Air Base, Colorado Springs, is a United States Space Force base that shares an airfield with the adjacent Colorado Springs Municipal Airport and is home to the North American Aerospace Defense Command (NORAD), the Space Force's 21st Space Wing, elements of the Space Force's Space Systems Command, and United States Northern Command (USNORTHCOM) headquarters. Developed as a World War II air support base for Camp Carson, the facility conducted Army Air Forces training and supported Cold War air defense centers at the nearby Ent Air Force Base, Chidlaw Building, and Cheyenne Mountain Complex. The base was the location of the Air Force Space Command headquarters from 1987 to 20 December 2019 and has had NORAD/ NORTHCOM command center operations since the 2006 Cheyenne Mountain Realignment placed the nearby Cheyenne Mountain Complex on standby. On 26 July 2021, the installation was renamed ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Multistage Rocket
A multistage rocket or step rocket is a launch vehicle that uses two or more rocket ''stages'', each of which contains its own engines and propellant. A ''tandem'' or ''serial'' stage is mounted on top of another stage; a ''parallel'' stage is attached alongside another stage. The result is effectively two or more rockets stacked on top of or attached next to each other. Two-stage rockets are quite common, but rockets with as many as five separate stages have been successfully launched. By jettisoning stages when they run out of propellant, the mass of the remaining rocket is decreased. Each successive stage can also be optimized for its specific operating conditions, such as decreased atmospheric pressure at higher altitudes. This ''staging'' allows the thrust of the remaining stages to more easily accelerate the rocket to its final velocity and height. In serial or tandem staging schemes, the first stage is at the bottom and is usually the largest, the second stage and subse ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cancellation (mail)
A cancellation (or cancel for short; French: ) is a postal marking applied on a postage stamp or postal stationery to deface the stamp and to prevent its reuse. Cancellations come in a huge variety of designs, shapes, sizes, and colors. Modern cancellations commonly include the date and post office location where the stamps were mailed, in addition to lines or bars designed to cover the stamp itself. The term "postmark" refers specifically to the part that contains the date and posting location, but the term is often used interchangeably with "cancellation" as it may serve that purpose. The portion of a cancellation that is designed to deface the stamp and does not contain writing is also called the "obliteration"#Scott US, Scott US p. 30A. or Killer (philately), killer. Some stamps are issued pre-cancelled with a printed or stamped cancellation and do not need to have a cancellation added. History The first adhesive postage stamp was the Penny Black, issued in 1840 by Postage ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cover (philately)
In philately, the term cover pertains to the outside of an envelope or Mail, package with an address, typically with postage stamps that have been Cancellation (mail), cancelled and is a term generally used among stamp and postal history collectors. The term does not include the contents of the letter or package, although they may add interest to the item if still present. Cover collecting plays an important role in postal history as many covers bear stamps, postmarks and other markings along with names and addresses all of which help to place a cover at a given time and place in history. History The term originates from the practice of covering a letter by folding a separate sheet about it to physically protect it and prevent infringement of confidentiality. In the first half of the 19th century it became the fashion to cut the cover into a diamond or lozenge shape. This was the precursor of the version of the envelope known today. Its convenience and popularity led to the loz ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
