Epsilon Eridani Information

Ever hear of Epsilon Eridani? Its a nearby star and famous from a number of science fiction stories, shows, and movies. This star is also home to at least one planet, which has caught the eye of professional astronomers. Putting Epsilon Eridani into Perspective The Sun lives in a relatively quiet and fairly empty region of the Milky Way galaxy. Only a few stars are right nearby, with the closest ones being 4.1 light-years away. Those are Alpha, Beta, and Proxima Centauri. A few others lie a bit farther away, among them Epsilon Eridani. Its the tenth closest star to our Sun and is one of the closest stars known to have a planet (called Epsilon Eridani b). There may be an unconfirmed second planet (Epsilon Eridani c). While this nearby neighbor is smaller, cooler and slightly less luminous than our own Sun, Epsilon Eridani is visible to the naked eye, and is the third closest star that is viewable without a telescope. Its also featured in a number of science fiction stories, shows, and movies.   Finding Epsilon Eridani This star is a southern-hemisphere object but is visible from parts of the northern hemisphere. To find it, look for the constellation Eridanus, which lies between the constellation  Orion and nearby Cetus. Eridanus has long been described as a celestial river by stargazers. Epsilon is the seventh star in the river that extends from Orions bright foot star Rigel.   Exploring this Nearby Star Epsilon Eridani has been studied in great detail by both ground-based and orbiting telescopes. NASAs Hubble Space Telescope  observed the star in collaboration with a set of  ground-based observatories, in the search for any planets around the star. They found a  Jupiter-sized world, and its very close to Epsilon Eridani. The idea of a planet around Epsilon Eridani is not a new one. Astronomers have studied this stars motions for decades. Tiny, periodic changes in its velocity as it moves through space indicated that something was orbiting the star. The planet gave mini-tugs to the star, which caused its motion to shift ever so slightly. It now turns out that, in addition to the confirmed planet(s) that astronomers think are orbiting the star, there is a dust disk, likely created by collisions of planetesimals in the recent past. There are also two belts of rocky asteroids orbiting the star at distances of 3 and 20 astronomical units. (An astronomical unit is a distance between Earth and the Sun.) There are also debris fields around the star, leftovers indicating that planetary formation did indeed take place at Epsilon Eridani.   A Magnetic Star Epsilon Eridani is an interesting star in its own right, even without its planets. At less than a billion years old, its very youthful. Its also a variable star, which means that its light varies on a regular cycle. In addition,  it shows a lot of magnetic activity, more so than the Sun does. That higher rate of activity, along with its very fast rotation rate (11.2 days for one rotation on its axis, compared to 24.47 days for our Sun), helped astronomers determine that the star is likely only about 800 million years old.   Thats practially a newborn in star years, and explains why theres still a detectable debris field in the area.   Could ET Live on Epsilon Eridanis Planets? Its not likely theres life on this stars known world, although astronomers once speculated about such life signaling us from that area of the galaxy. Epsilon Eridani has also been suggested as a target for interstellar explorers whenever such missions are finally ready to leave Earth for the stars. In 1995, a microwave survey of the sky, called Project Phoenix, searched for signals from extraterrestrials that might inhabit various star systems. Epsilon Eridani was one of its targets, but no signals were found.   Epsilon Eridani in Science Fiction This star has been used in many science fiction stories, TV shows, and films. Something about its name seems to invite fabulous stories, and its relative closeness suggests that future explorers will make it a landing target.   Epsilon Eridani is central in the Dorsai! series, written by Gordon R. Dickson. Dr. Isaac Asimov featured it in his novel Foundations Edge, and it is also part of the book Factoring Humanity  by Robert J. Sawyer. All told, the star has shown up in more than two dozen books and stories and is part of the Babylon 5 and Star Trek  universes, and in several movies.  Ã¢â‚¬â€¹Edited and expanded by  Carolyn Collins Petersen.

Hamlet, By William Shakespeare - 892 Words

One of Shakespeare’s most compelling plays would arguably be Hamlet. Throughout the years, scholars have written countless analysis’ of the play and the characters presented within the text. One of the most enigmatic characters is Ophelia, daughter of Polonius, sister of Laertes and one could argue the lover of Hamlet. Her background is unknown which makes for an interesting canvas for readers, actresses and academics to paint upon. She is a sweet, innocent young woman, subject to the rules of the men in her life as a result of her gender, she is to be subservient despite any contradictory feelings she might possess. Her relationship to Hamlet is a subject that many have pondered upon. Did Hamlet truly love the fair Ophelia? His harsh words and actions towards the young maiden are unforgiving despite his passionate words the young prince uttered while standing in her grave. The debate about their relationship and the lack of any defining characteristics of Ophelia herse lf has become a popular topic and it is one that shall be discussed within this paper. A question that has been asked for decades is did Hamlet truly love Ophelia? Certainly his mannerisms when he approaches her in her bedchamber, his state of dress disheveled, his manner wild and distressing gives the indication that her refusal to see him and her rejection of his letters indicate a man who is suffering from his affections being denied and spurned. When the play opens we do not see Hamlet as Ophelia’s loverShow MoreRelatedHamlet, By William Shakespeare880 Words   |  4 PagesWilliam Shakespeare is praised as the pioneering English poet and playwright whose collection of theatrical works is regarded as the greatest artistic value throughout the history of English literature. 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Mis Quiz 1 Free Essays

MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) The failure of NASA’s initial solution to preventing the space shuttle shedding foam illustrates: 1) _______ A) the need to prepare for measuring outcomes of a business solution. We will write a custom essay sample on Mis Quiz 1 or any similar topic only for you Order Now B) the need to quickly adapt to new technological innovations. C) the continuous nature of problem solving. D) the importance of training employees on new business processes. ) In choosing the best solution for a business problem, one of the most important considerations is: 2) _______ A) outcome measurement. B) existing resources and skills. C) employee training. D) change management. 3) Converting raw data into a more meaningful form is called: 3) _______ A) capturing. B) processing. C) feedback. D) organizing. 4) The final step in the four-step model of business problem solving is: 4) _______ A) feedback. B) implementation. C) outcome. D) change management. ) Inadequate database capacity is an example of the ________ dimension of business problems. 5) _______ A) management B) technology C) people D) organizational 6) Operations management as a discipline is directly relevant to three occupational categories: 6) _______ A) project managers, production managers, and administrative service managers. B) industrial production managers, operations analysts, and administrative service managers. C) project managers, production managers, and industrial production managers. D) finance, accounting, and management. 7) Which of the following statements is not true? 7) _______ A) The most common and successful offshore outsourcing projects involve production programming and system maintenance programming work, along with call center work. B) The fear that offshore outsourcing will reduce demand for new information system hires in the U. S. is mitigated by the fact that reduced IT expenditures results in increased IT investments and the creation of domestic jobs. C) The impact of domestic IT outsourcing has been very disruptive to some regional areas of the U. S. D) Inflation in Indian wages for technology work is leading to a counter movement of jobs back to the United States. Read also Quiz Week 4 8) To make sure they stock clothes that their customers will purchase, a department store implements a new application that analyzes spending levels at their stores and cross-references this data to popular clothing styles. This is an example of using information systems to support a business strategy of: 8) _______ A) survival. B) customer and supplier intimacy. C) improved decision making. D) new products, services, and business models. 9) Maintaining the organization’s financial records is a business function of: 9) _______ A) sales B) marketing. C) finance D) accounting. 10) Journalist Thomas Friedman’s description of the world as â€Å"flat† referred to: 10) ______ A) the flattening of economic and cultural advantages of developed countries. B) the growth of globalization. C) the use of the Internet and technology for instantaneous communication. D) the reduction in travel times and the ubiquity of global exchange and travel. 11) Verizon’s implementation of a Web-based digital dashboard to provide managers with real-time information such as customer complaints is an example of: 11) ______ A) improved decision-making. B) improved flexibility. C) customer and supplier intimacy. D) improved efficiency. 12) The move of retail banking to use ATMs after Citibank unveiled its first ATMs illustrates the information system business objective of: 12) ______ A) competitive advantag B) customer and supplier intimacy. C) improved efficiency. D) survival. 13) Based on your reading of the case discussing mobile handhelds, Doylestown Hospital’s use of iPhones is an example of using information systems to enhance which of the following generic business objectives? 13) ______ A) Improved decision making B) New products, services, and business models C) Survival D) Customer and supplier intimacy 14) An information skill important for an accounting major would be: 14) ______ A) an understanding of product management enterprise systems. B) an understanding of enterprise systems that enhance leadership. C) an understanding of supplier management enterprise systems. D) an understanding of system and network security issues. 15) As discussed in the chapter opening case, the Yankees’ use of information systems in their new stadium can be seen as an effort to achieve which of the primary business objectives? 15) ______ A) Operational excellence B) Survival C) Improved decision making D) Customer and supplier intimacy 1) C 2) B 3) B 4) B 5) B 6) B 7) C 8) B How to cite Mis Quiz 1, Essay examples