Wednesday, January 29, 2020
The Solar System And The Earth Essay Example for Free
The Solar System And The Earth Essay THE SOLAR CYCLE AND ITS EFFECT ON THE EARTH The motion of the sun can trigger earthquakes. The solar flares also have the capability of altering the length of the day. There exists a correlation between solar activities and weather. There is a correlate between various geophysical phenomena, volcanic eruption, earthquake, solar activities and the length of the day. DYNAMICS OF A PHOTON                                                                                                   â€Å"Photons are often described as wavelets because a single photon covers only a very small amount of space†(www.play-hookey.com) .A photon of light is produced when light from a source (sun, etc) of an appropriate frequency (threshold frequency) impinges on the atom or metal surface, a phenomenon referred to as the photoelectric effect. The light impinging on the metal surface could be UV or infrared rays of appropriate frequency.  The number of emitted electron varies from one atom to the other due to the difference in the characteristics intensity of light. The more the intensity of the light, the more the number of emitted electron or photon of light. Another reason for the difference in the amount of photon of atoms in the periodic chart is due to the difference in the mass.The heavier the atom, the more the no emitted electron.In the same vein the energy of the emitted electron depends on the frequency of the impinging light rays. SIMILARITIES AND DIFFERENCES OF THE VARIOUS COMPONENTS OF THE ELECTROMAGNETIC SPECTRUM  Infrared rays and radio waves carry less energy per photon than visible light. They have low frequency and high wavelength. On the contrary, UV rays, x ray and gamma rays have high frequency and low wavelength. All travel at the same speed as light. The difference lies in the difference in the wavelength .X rays have found their use in medicine as they penetrate human body. Radio waves have weak penetrating power. Visible light can pass through transparent objects e.g. glass.  USE OF ELECTROMAGNETIC SPECTRUM TO DETERMINE COMPOSITION AND MOTION OF STAR        Today it’s been possible to determine the chemical composition of the stars. The valuable tool to do this is via spectroscopy (i.e. the study of a thing using spectra) .Astrophysics and spectroscopy are closely related. â€Å"Astrophysics is the aspect of astronomy that deals with the physical properties of stars, galaxies and other astronomical objects†(Astrophysics on astronomical.org) .Sunlight can be separated into its various colors via a prism. Dark lines in the spectrum indicate areas with little or no light. On the earth similar line could be seen with hot gases spectra. These patterns correspond to specific element. The chemical elements in the sun which is mainly hydrogen are also found on planet earth. The vast similarities in the absorption line of sun and the stars lead to the conclusion that the stars composed majorly of helium and hydrogen with traces of other elements. So many information is revealed by the absorption line pattern of stars. A large domain of stellar spectra contains absorption lines . The star must be made up of an outer part which is less dense, cooler and atmospheric and also the inside must be hot and denser and produces a continuous spectrum. The temperature of the earth is inversely proportional to the distance from the earth’s centre. Stars lack molten interior as opposed to what is observed in other planets. The denser part is also gaseous because of the high temperature. From EM spectrum it appears to us as if the stars (and sun, planet and moon) rotates around us. On a daily basis, it arises in the east and set in the west. This is the diurnal motion.       Works Cited: Ken, Bigelow.†Characteristics of a Photon.†(1996, 2000-2007) Retrieved from www.play-hookey.com on Sept. 27, 2008. Scientia Astrophysical Organization.†Astrophysics and Astronomy.†Retrieved from: www.Astrophysical.org on Sept 27, 2008.
Tuesday, January 21, 2020
Sin City Essay -- Personal Narrative Las Vegas Gambling Essays
Sin City Two years ago my husband, myself and another couple visited Las Vegas, which is better known as sin city. Las Vegas is the biggest city in Nevada. Neon glittered hotels make up the general landscaping, which is otherwise a flat valley with a mountaintop background. The city is quite compact for tourism purposes, even though according to Frommer’s, Vegas is considered one of the fastest growing cities in America. Gambling is the central focus of Vegas, and casinos are abundant, but if gambling is not your thing there are plenty of other attractions to do and see. Vegas is made up of two distinct areas the â€Å"Strip,†and â€Å"Downtown.†The â€Å"Strip,†is considered the most famous four-mile stretch of highway in the nation. It contains most of the big name hotels and entertainment. Most of our time was spent on the Strip. Downtown is located on Fremont Street and was the first area to develop hotels and casinos. It has an old time Vegas feel to it. The streets are narrow and a balcony over head displays a must see light show. The light show is free so it can be enjoyed if you lose all of your money gambling. Flying into Vegas the first things visible are the giant hotels and casinos. We arrived during the day so unfortunately did not see the majestic effect of the lights. However, this did not downplay the grandness of the hotels. A short bus ride took us to our home for the week, the Imperial Palace. It was very budget friendly, with an ideal location, smack dab in the middle of the strip. The Imperial Palace pales in comparison to its glamorous neighbors. At first glance the casino is very dark and reminiscent of old Vegas, but for the price and location it is a steal. The rooms are clean, and it is one of the few h... ...strip so it is away from the hustle and bustle of everything. The drinks are small, but for only a buck well worth it. Not only did the price of the drinks rank high on our list, I also won sixty dollars there. They had an excellent band playing which was free and if you look closely you may even spot a few prostitutes hanging around. This may sound a little scary, but it really wasn’t. Vegas is a great place to visit if you want to see and do a lot of different things. It is a gamblers haven, yet it also offers many other things to do. It is fairly inexpensive depending where you stay and travel agencies always have different packages available to fit your needs. Whether you are a gambler or a sightseer, have a lot of money or a tight budget, Vegas is the place for you. Remember it is nicknamed â€Å"sin city†for a reason so be prepared to see and do the unexpected.
Sunday, January 12, 2020
Francisco De Zubar N And His Work English Literature Essay
Francisco de Zurbaran, a Spanish painter was born in Fuentes de Cantos, Badajoz Province in Estremadura and baptized on Nov. 7, 1598. His male parent was a comfortable tradesman of Basque descent. In 1614, Zurbaran ‘s male parent sent him to Seville to apprentice for three old ages to a second-rate painter of images, Pedro Diaz de Villanueva. Zurbaran opened a workshop in Llerena in 1617 and married a adult female older than himself. She died after holding three kids. He was married once more to a widow in 1623. During his 11 old ages in Llerena, Zurbaran ‘s piousness was influenced by Spanish Quietism, which was a spiritual motion that taught inner backdown, the find of God in meekly submissive silence, and the usage of penitentiary exercisings to repress the senses and quiet the mind. Although this influence had a deep consequence on his art, it in no manner limited his artistic creative activities. The contracts for this period are so legion that he would hold been obl iged to delegate many of them to helpers. In add-on, he was transposing to Seville to put to death plants for the Dominican, Trinitarian, Mercedarian, and Franciscan monasteries. In 1629, the Seville Town Council persuaded Zurbaran to travel his workshop to their metropolis. He arrived with his married woman, kids, and eight retainers. The undermentioned twelvemonth the painters ‘ Guild of St. Luke ordered him to subject to an scrutiny and he refused. The town council ended up back uping him. His frequenters continued to be largely monasteries including the Capuchins, Carthusians, and Jeronymites were added to the list. In April 1634, the painter Diego Velazquez, who was in charge of the ornaments for the new Royal Palace in Madrid, commissioned Zurbaran to put to death for the Hall of Realms two conflict scenes, which were to belong to a series that included Velazquez ‘s Surrender of Breda, and 10 Labors of Hercules. Zurbaran returned to Seville in November with the hon orary rubric of Painter to the King and the happy memory that Philip IV had called him the male monarch of painters. Zurbaran was at a extremum of creativeness and felicitousness in 1639, when his married woman died. His art production declined markedly and his manner became graver. He married for the 3rd clip, in 1644, but his artistic star was falling. Missing sufficient committees at place, Zurbaran was obliged to make the bulk of his plants for South America. With four more kids born of his new matrimony, he sold Flemish landscapes and pigments and coppices to the South American market. He continued to bring forth largely for South America until 1658, when he decided to seek to alter his fortune in Madrid. His art, nevertheless, was small apprehended at that place. Zurbaran died destitute in Madrid on August 27, 1664. Zurbaran ‘s work was really sophisticated with accurate pragmatism and indefinable mysticism. Zurbaran chose to be a painter of spiritual topics. His work was ever created big. Other effects are attained by the elaborate finished foregrounds which mass out mostly in visible radiation and shadiness. He was really adept in painting figures with curtain as shown in one of his works The Annunciation. He worked with oil pigments and most of his plants were spiritual scenes and portrayals. Two-thirdss of his plants were painted in the 1630 ‘s and the other 3rd is about every bit divided before and after that decennary. The Annunciation was painted in 1650 with oil on canvas. It measures about 85 inches tall and about one-hundred and 24 inches broad. â€Å" This Annunciation falls rather late in Zurbaran ‘s calling, when his simple and disconnected mold, dark to visible radiation, begins to soften and film over. His pallet becomes less blatant and more blended, while the about militaristic urgency of his earlier work is replaced by an familiarity and tenderness. The walls of the Virgin Mary ‘s room literally dissolve in a inundation of cherubs bathed in visible radiation, as the angel Gabriel with great heroism and discretion announces that she is with kid †says Joseph J. Rishel. Francisco de Zurbaran has a realistic manner shown in the picture. It features a room in which an angel is seen at the left kneeling on the land before the Virgin Mary. The figure of Mary is placed between a chair and a little wooden tabular array draped with a green fabric. Mary looks as though she is s urprised to be greeted by the angel although glancing at the floor. She disregards the unfastened Bible since she has been distracted. Behind and above the two figures are cherubs resting on beds of clouds merrily staring down at Mary with eyes from Heaven. Elementss such as visible radiation, colour, and texture are used in The Annunciation. Francisco de Zubaran does non demo a beginning of visible radiation in the picture, but we can see the light get downing from heaven with the cherubs and bit by bit gets darker to where the image about looks blurry on the lower left following to the angel. Light besides emphasizes the just tegument of the Angel and Mary as they both look down towards a shady floor. It reflects the unfastened Bible hinting on the sanctity and importance of Mary. Color draws attending to of import characters and objects in the picture. The ruddy and bluish Mary wears gives us a sense she is the chief focal point of the image since they are two different colourss in temperature and really concentrated. The bright yellow used indicates a celestial felicity or spirit such as how the dove is painted. The little soft silky texture used in this picture shows Zurbaran ‘s usage of pragmatism. The curtain looks about perfect compared to the remainder of the room. If the picture is looked at closely, you can see more symbolism such as a really weak xanthous visible radiation around Mary ‘s caput about like a aura which signifies her sanctity. The little xanthous dove at the top of the picture besides looks down at Mary and even gives a visible radiation pointed down at her caput. The cherubs and the angel are all smiling giving the image a joyful significance. You can besides see the flowers at the bottom right giving the painting an even more sense of softness, raising, and peace. The iconography of The Annunciation is shown how Zurbaran portrays the narrative of the Angel Gabriel looking earlier Mary to denote that God has chosen her to bare a boy, Jesus, who will salvage God ‘s people from their wickednesss. An anon. individual explains â€Å" Zurbaran besides idealizes Mary to stress her sanctity. Mary maintains a graceful airs even when she is frightened by the Angel ‘s intelligence. The room is besides au naturel and suggests Mary ‘s modestness. The Angel appears soft and the white colour of the angel shows the pureness of God ‘s courier. †Today, The Annunciation corsets at the Philadelphia Museum of Art as Francisco de Zurbaran continues to delight many with his endowments with the elements used in such an of import spiritual event. You can state he take to paint spiritual bible narratives with his really precise manner of painting the significance, symbolism, and great item.
Saturday, January 4, 2020
The Conservation Of Sustainable Agriculture - 3041 Words
Webster s dictionary defines stewardship as the careful and responsible management of something entrusted in one s care (Webster, 1993). Sustainable agriculture is a method that does not deplete soil, water, air, wildlife or human community resources (Community Alliance with, 1997). These two principles describe a type of farming that practices responsible management of the land in a way that does not deplete natural resources or the human community. We are living in a time when many environmental issues have come up due to such things as overpopulation, increased waste production, over consumption, depletion of natural resources and other activities that do not replenish the land. We must show great concern in dealing with these†¦show more content†¦Alternatives to conventional farming methods are present and do have the ability to serve sustainably and with stewardship. Sustainable farming strives to avoid the depletion of natural resources by opposing methods that rely heavily on petroleum products (gasoline, chemical fertilizers and pesticides) and/or exploited labor. Organic farming involves the strict adherence to three standards defined by the federal Organic Foods Production Act of 1990. The act includes the stipulation that farmers must be certified, continually increasing soil fertility and are prohibited from using synthetic pesticides and fertilizers (Community Alliance with, 1997). Thus, sustainable agriculture involves a continuum, containing points where limited use of synthetic products may be acceptable to organic farming where none are used. It can be argued that sustainable methods are very practical today, and are important in retaining healthy land that will be productive in the future. The history of agriculture shows how agriculture has developed to where we are today with traditional methods. By looking at obstacles to organic farming and the problems and solutions to traditional methods, we can see the importance of increasing sustainable efforts. Furthermore, it is important to look at the link between faith and farming and how people can apply biblical principles to farming the land
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