Albert Einstien The Smartest Man in History Essay

Einstein helped create the scientific world we all know today. He is one of the worlds most famous scientists. Not only that, you may know Albert Einstein as the man with crazy hair or the man on the bicycle. Whatever you remember of him, he will always go down as one of the smartest men in history. Albert Einstein has forever changed American history. In this essay, you will read about Alberts early life, family and marriage, his miracle year, his scientific career and theory of relativity, US contributions, and his later years. Did you know Albert Einstein failed an exam in his school years? (Biography Channel Website) Albert Einstein was born on March 14, 1879 in Ulm, Germany. His father was Hermann Einstein and his mother was†¦show more content†¦Albert felt so lonesome that he went to Milan in search of his parents. Albert applied to a high school in Zurich, Switzerland. Because he did not receive a high school diploma, he was unsuccessful on the exam except for the subjects Max taught him: math and physics. He went back to high school and graduated in 1896. Did you know Albert had two wives, one of which was his cousin? (E2=Educational Entertainment Hub) Albert made many friends at the Zurich School. He even met his first wife there: Mileva Maric. In 1902, they had a daughter named Lieserl. Lieserl either died of sickness or was adopted. Albert was unemployed for a time and so he couldnt marry Mileva. (Also, because his parents did not feel she was the right girl). He began tutoring children until his father’s friend offered him a fantastic job. At this point, Einstein’s father got deathly sick and he eventually died. Before his death, he gave Albert permission to marry Mileva, and so he did. Albert married Mileva Maric on January 6, 1903. A year later, the had a son named Hans Albert and then in 1910 their second son whom they named Eduard. Albert later divorced Mileva and married his first cousin, Elsa Lowenthal, in 1923. She later died and Albert adopted her two daughters from her previous marriage. Albert never married again. Did you know Einstein was offered a job as the President of Israel? In 1905, the miracle year, Albert accomplished many things. He had his papers published in a physics journal,

The Value Of Hospitality During The Iliad And The Odyssey

In Homeric society, hospitality was highly valued by all members of the society. The value of hospitality was shown in The Essential Homer: Selections from the Iliad and the Odyssey by the main character Achilles in his interactions with various other characters in the story. Achilles was welcoming to visitors to his home by offering them refreshments, dinner, and a place to rest. Showing your hospitality to guests like Achilles did in the Iliad demonstrated how hospitality in this time period defined the place of humanity in the cosmos. Before focusing directly on Achilles in the Iliad, it is important to identify why hospitality was important to the Ancient Greeks. Two reasons being hospitable is important to the Ancient Greeks is because it shows respect for guests in someone’s household, and travelling in that time period took much longer than today. For the Ancient Greek’s, respect and honour is everything. When someone comes to your home the way to show your re spect for them is by providing whatever they need after a long journey. Since in ancient times there were no cars, planes, or trains, many people had to walk or ride horses to get around. Due to this, people would be tired, hungry, and thirsty when they arrived at a given location. By being hospitable, a homeowner would show respect for their guests and give them the necessary refreshments to carry on their journey. In the Iliad, Achilles understands the importance of being hospitable and is welcoming toShow MoreRelatedIliad and Odyssey1825 Words   |  8 Pagesand cinema of a certain era. The epic poems, The Iliad and Odyssey, give scholars and historians an idea how the Ancient Greek lived their everyday lives. By reading the two novels, the reader is able to experience the three thousand years old society of Homer. The various similarities between our society and the societies depicted in the Iliad and the Odyssey are surprising profuse. To name a few: the superfluous viole nce in Iliad and Odyssey, the characterization of Odysseus, the obscureRead More Iliad And Odyssey Essay1796 Words   |  8 Pagescinema of a certain era. The epic poems, The Iliad and Odyssey, give scholars and historians an idea how the Ancient Greek lived their everyday lives. By reading the two quot;novels,quot; the reader is able to experience the three thousand years old society of Homer. The various similarities between our society and the societies depicted in the Iliad and the Odyssey are surprising profuse. To name a few: the superfluous violence in Iliad and Odyssey, the characterization of Odysseus, the obscureRead MoreThe Iliad And The Odyssey1657 Words   |  7 PagesIn Greek mythology, one of the most important wars fought during the Bronze Age was the Trojan War. The Trojan War took place around the 12th or 11th Century BC. One of the largest impacts this war had was the inspiration it provided to many famous writers of antiquity, which include writers such as Hom er, Virgil, Herodotus and many others. One of the most important writers during the Greek Dark Ages was Homer, who I believe was the most influential writer of his time, and a writer who had trulyRead MoreHomer’S Two Tales, The Iliad And The Odyssey, Are Both1749 Words   |  7 PagesHomer’s two tales, the Iliad and the Odyssey, are both incredibly well known and widely taught across the world and at many different levels of education. Some call Homer the â€Å"greatest poet to ever live† and although this can be disputed his works truly speak for themselves and have braved the test of time quite well. This paper will cover who/whom Homer is as a person, or persons, and the time period of his writings, the truths versus the dramatizations of the Iliad and Odyssey, how the author’s perspectiveRead MoreThe Odyssey By Homer s Odyssey2866 Words   |  12 Pagesâ€Å"Homer’s Odyssey is the only surviving poem from a cycle of poems called the Nostoi ( â€Å"the Returns†), which told of the returns home of the various Greek heroes at Troy† (Norcott, 2012). The Odyssey is one of many accounts of the Greek heroes that took part in the Trojan War. Odysseus’ story was just one that survived after all of these years. The story came out as an Epic only because of how the people revered the heroes as they started many trends, such as Odysseus’ Trojan horse. â€Å"These epics lieRead MoreThe Sermon On The Mount1530 Words   |  7 Pagescould have lined up with this teaching, Socrates might come close, but his life hardly appears to reflect blessings. Jesus’ teachings were revolutionary as they presented the people of the time a completely new way of thinking about piety and what God values in human actions. From the earliest forms of literature, gods and goddesses were presented to men in fantastically inventive ways. The story of the creation in Hesiod’s Theogony tells of the creation of the gods while also giving a representationRead MoreAnalysis Of The Poem Beowulf 851 Words   |  4 Pagespoem was written between 8th and 11th century. The value of this poem in English literature can be compared with value of Iliad and Odyssey in Greek literature. Beowulf, one of the oldest poems in existence, offers a glimpse of the world that had a heroic code of honor. It was also inhabited by various kinds of monsters. This story is set in Scandinavia and tells the story of Beowulf and his heroic deeds and records the culture as well as values of the bygone era. This story is about prince of GeatsRead MoreThe Odyssey Books 1-4: Notes Essay1547 Words   |  7 Pagesï » ¿The Odyssey Books 1-4: Notes due Friday 1/10 (3/5) and Monday 1/13 (2/4) An Uncertain Identity Prince Telemachus is the first human character whom the reader meets. He is the son of the long-missing Greek warrior Odysseus, King of Ithaca. Telemachus is too young, too untested, too unsure to have a firmly established sense of identity. Having grown up fatherless in a household full of insolent men who are besieging his mother and consuming his inheritance, he feels totally powerless. The goddessRead MoreAnalysis Of Homer s The Odyssey 1652 Words   |  7 Pagesepic poem known as The Odyssey, the story informs readers of the main character of the plot, Odysseus, who survived after the fight of the Trojan War. After his time in battle, he was faced with various trials and tribulations, as he moved across the vast world. Throughout his 10 years away from his homeland, he longed to return home to Ithaca, ultimately to be reunited with his wife and son. Homer, the author of this epic poem, as well as the preceding book named The Iliad, writes about the manyRead MoreGreek Mythology: Influences and Effect to Greek Civilization5325 Words   |  22 Pagesearly civilizations. The rich history of the Mediterranean led the world to change its views and led to the enlightenment of the world to the principles of life especially during the time of the classical civilization of the Greeks and the Romans. The impacts left by Greece to the world was mostly through its mytholo gy and during the time of ancient Greece, Greek mythology also influenced the life style and religion of the Greeks, especially because Greek mythology served as the primary basis of Greek

Why an Art Teacher free essay sample

If art is expressing yourself, a way to show your innermost emotions and ideals, if art is a way to draw people together, for a purpose or a product, then what is the art teacher? To not only follow these principles, but to pass them down to others, an art teacher can change lives. They live out those lives they change by guiding those students to succeed. In short, they are honored mentors, advisors, and even friends. Having had the privilege of being an art student for several years now, I have had first-hand experience with how important and pivotal a role the art teacher plays. I certainly never would have come so far, nor ever desired to become a teacher, if not for the impression they had left on me. They have inspired me to chase a dream, rather than keep myself secure with a safer, easier job in higher demand. We will write a custom essay sample on Why an Art Teacher? or any similar topic specifically for you Do Not WasteYour Time HIRE WRITER Only 13.90 / page For years now, I have heard how art is slowly being severed from the curriculum in public schools. I can’t personally say if this cut is as rapid as I’ve heard, but just from day-to-day class I know that competition for such jobs is exceptionally high. I have never thought I was the best at what I do, but I know that I love my artwork, and that I have the skill to compete. Moreover, I know I have the drive to succeed. I have the potential, and I will make it. Many people in the past have asked me, â€Å"Why don’t you strive for a safer career? Why not follow up on drafting, for example? It’s in high demand,† and it’s true, I certainly could. However I cannot, in good conscience, pursue a career that would not keep me happy. I have tried to be as helpful as possible to my fellow art students, sharing what I know, and have learned that there is no greater joy for me than sharing my skills with others, and no greater honor than being asked to do so. The choice is clear; no other career would keep me as happy as that. I want to enjoy and embrace the privilege of teaching others in the way that my own art teachers taught me to embrace art itself. I want to chase that dream, to the ends of the Earth if I have to. Moreover, and most importantly, I want to keep a tradition of teacher after teacher alive, I want to inspire my student to show themselves, and chase their own dreams. I want to teach, and thus to live.

Spanish free essay sample

The themes concentrated on female issues such as motherhood, elationships, female relations, power, suppression, societal Ideas and most importantly identity. While there was indeed the publishing of many memoirs that dealt with an individual experiences and identity, Montero and Gaite, among others, chose to write books exploring the collective experiences of their generation. They highlight the fact that, while classes and political views may have divided them. they shared a communal experience of life under Francffs regime and the impact that had on shaping their Identity. hile female identity Is the most explored element of oth novel, in neither is the male ignored, In both novels Montero and Gaite employ the use of language and popular culture to illustrate and also subvert different ideas gender Identity. 30th use elements of language and culture not only to Illustrate their influence on gender perception but also to influence and challenge the readers understanding of traditio nal views on gender identity. We will write a custom essay sample on Spanish or any similar topic specifically for you Do Not WasteYour Time HIRE WRITER Only 13.90 / page In order to understand the role that language and culture has in influencing identity in these novels, it is important to examine the society portrayed in them. Francoist Spain treated women as second class citizens. Enshrined In the constitution was the idea of permiso marital. Without the husbands permission, a wife was forbidden to do anything. (C talks about how even interior decorating had to approved first by the husband) She was Ilke his property. The females role was resigned to that of wife and mother. They were Inoculated with ideas of submission and inferiority by the Seccion Feminina, which was responsible for the education and training of women . In their words, women were neither Innovative nor creative, Las mu]eres nunca descubren nada: Ies falta, desde luego, el talento creador Womens ducation was also influenced by Roman Catholic ethos. An emphasis was placed on religion and domestic Instruction. (Antonias own mother was Illiterate and had to have Antonias letters read to her). Females were unable or were discouraged from taking an academic or other role than differed from the traditional female role. ( CS mother was unable to pursue her studies) Traditional gender stereotypes were also reinforced through culture and their language. There was strict censorship on all forms of culture. Ideas and images of the perfect female models were unrealistic. They were expected to be patient, sweet and passive. Role models Included Isabel la Catholica, a Spanish saint. Through magazines, Bolerffs. film reels and radio, gender stereotypes were portrayed and reinforced, for both male and female. Those that transgressed trom these traditional roles were portrayed in a negative light in popular culture of the Franco regime. Both Montero and Gaite recognize the Influence that this culture had on the formation of, not only their Identity, but that of influence and also illustrate the impossible and damaging aspects of solely using hese cultural ideas in identity formation. (However, Gaite, does also note some of the positive and unintentional positive impacts of culture on her identity). Both use culture as a means to connect and identify with others of their generation and those that shared similar experiences. The language of both novels provides an essential tool in creating the idea of gender identity. Both Montero and Rosa use different forms of metaphysical narrative in order to create an idea of identity. Montero uses the a mixture of third person narrative, Boleros, articles, transcripts , letters and diary entries in order to llow us to understand the different types of gender roles at play throughout the novel. By starting the text with Mancebos article we are allowed an insight the male perspec tive and the gender stereotypes reinforced by society . Bella, as she doesnt fit in with the traditional female identity is portrayed as abnormal and masculine,(era much mas alta y mucho mas orpulenta que el infortunado) while Antonio in many areas is shaped into the ideal male model envisaged by society. (Los vecinos aseguran que don Antonio fue siempre un hombre callodo y educado que nunca dio ugar a escandalos ) Through the article and the transcripts we see the typical male attitude. All condemn Bella and see Antonio in a positive light . The rest of the story is told through the third person narrative with interjections of different forms of text and narration throughout. The sceptical and ironic tone of the third person narrator constantly urges us to challenge and question the validity and the possibility of the traditional stereotypes portrayed in the text in relation to gender identity. Antonias letter to her mother illustrates female passivity and subordination and the maternal ole in the sense of female identity in society. Antonia adopts a maternal tone for both Antonio and Damian . But the last letter highlights a change, Antonia makes herself the subject. It is known from the third person narration this change has occurred due to her happiness in challenging the social stereotypes with Damian. Antonios machista identity that he displays in public, such as his dealing with Inspector Garcia is contrasted against the narrators description of his feminine appearance and his romanticised diary entries. By using different forms of narrative, he author, not only shapes an image of gender identity within the society from different perspectives but also challenges it. A metaphysical narration is also used to great effect within El Cuarto de atras in order to create an image of gender identity. Gaite uses the first person narrative except at the beginning and the end. This novel combines biographical elements with memory, metafiction and fiction in order to create a collective vision . Thus this narration influences our understanding of the identity of a whole generation of women, rather than Just the protagonist. The fact that the narration is not strictly linear in both texts also influences identity perception. Montero gives the conclusion of the story at the start and then we work through the novel to understand how matters came to be as they are. Throughout the novel we are offered information on the characters past that help our understanding of the characters in their present state. (for example Antonio and Antonias experience living with a patriarchal father and a submissive mother) In el cuarto de atras, there is much Jumping back and forth to the past and present as C n chronological order. Both texts almost have a circular lineage, which highlights the fact that to understand the present, or oneself in the present, it is important to look to the past as we are shaped by our experiences. The first person narrative and the emphasis on the importance of the el hombre negro as an interlocutor and the inclusion of Antonias letters highlight an important point in relation to identity, the importance of telling ones story in order to enable understanding and self discovery. In relation to the language used and its influence on gender identity, different echniques are employed. In Te Tratare Como a ulna Reina, the book starts with the article in which there is a manipulation of language that subverts gender stereotypes. This subversion is continued throughout the novel in both the transcripts and the third person narrative, where there is a distortion in the use of traditional terms in relation to different genders. Bella in the article is defeminised, typically male orientate adjectives, verbs and adverbs are used. (sentarse sobre el,una fuerza enorme). As she does not fit in with the female stereotype adjectives, ouns and adverbs are used to highlight her abnormality such as ensanamiento, bestial, locura,anormal . loca is also a noun used to describe societys perception of a forward woman in el cuarto de atras) Antonio is also emasculated, coming across as weak and the weaker of the two sexes. (huir, el debil, atrapado). Throughout the novel, Antonio is repeatedly feminised by the language in which Montero uses to describe him. He has similar physical characteristics to his mother and his diary entries are full of flowery effeminate language. At the end of the novel, e see Antonio crying and behav ing in a very effeminate way. The subversion of gender norms challenges and ridicules the traditional view of gender identity. In el cuarto de atras the description of el hombre negro provides us with a varied representations of the male identity. By acting as the interlocutor, he is described as the opposite of the Francoist ideal man, aiding female creativity rather than oppressing it. Through her linkage of him to the Raimundo of the novela rosa, she gives us information on the idealised male hero and the conversation with Carolina lso serves to contrast the ideal images of the perfect man with the idea of a man who is abusive, cold and adulterous. (Highlighting the difference between fiction and reality). Through their use of language to describe different characters, both Montero and Gaite present ideas surrounding gender identity and ask the reader to challenge them. Symbols, metaphors and imagery are used in both the novels in order to shape gender identity in the novels and to influence the readers perception of this identity. The mirror is a powerful metaphor in both of the novels in relation to the discovering f ones own identity. Antonia in chapter one stares into the mirror. She views her image very negatively, perhaps symbolising her feelings of inadequacy for failing to live up to the traditional image of female identity. She draws herself closer and closer to the mirror, which can be seen as symbolizing her attempt to discover herself C in el cuarto de atras also uses a number of mirrors in her search of self identity. As Schumm states the mirror acts as a metaphor of the ongoing dialogue between the past and present throughout. C uses mirrors and other reflective objects to eawaken memories and engage with the past. In the kitchen C looks into the mirror of rebelling and who would disapprove of her cleaning (Anda que tambi ©n tÃ'Ëœ limpiando, vivir para ver) . According to Schumm reflects the process of continual identity formation and how the past can help with a present situation. The use of el cuarto de atras is also an important metaphor. Not only does the room actually exist but it also a part of oneself, it is a collection of our memories and experiences that help shape our identity. This part of her identity remains hidden behind una cortina, ut of reach of the Francoist suppression . The sowing box and room full of objects in el cuarto de atras, Just like Antonias box of relics from past male encounters all signify the memories and events that help shape ones identity. El hombre negro can symbolize many things from the devil, to Cs own fears. What is clear, however, is that he stands for an interlocutor, whether real or imaginary, who is an integral part of self discovery achieved through telling ones story . The names of the characters themselves also are significant in shaping our understanding of the characters dentity. In Te tratare como a una reina, the names of the characters can act as allegories, an insight into their identities. Antonia can symbolise her subjugation by a patriarchal society. Her name is simply the female version of her fathers. Benigno illustrates his benign personality and his submissiveness to societys stereotypes. Mancebo is an archaic word, signifying servitude to others, in this case to another male character, Antonio. Bellas name contrasts sharply with the masculine characterization of her by the male characters . In el cuarto de atras, Cs name can lso offer insight into, not only her identity, but also female identity. She links the C of her name with cuarto, casa, cama, corazon, Davies states that this not only alludes to traditional female occupations under the Franco regime but also to areas that allow women to create and write, activities that Gaite views as vital to identity development . In her conversation with el hombre negro C talks of the images role models and standards of the good women in Francoist society. The ideal role model being Isabel la Catholica . In Te tratare como a una reina, the imagery connected with wo of the female characters by the male characters offer us an sight into societys perception of two female identities, the angel or the whore. Benignds almost worship like aspect of Antonia links her to the image of angel in the house, while Menendez allusion to the possibility of Bella being a prostitute links her to the whore. Both authors talk of aspects of popular culture throughout. Gaite and Montero have done this to underline the huge influence that this culture had on the development of not only their characters identity, but of the identity of all those of their eneration. However, while Montero also sees the popular culture as having damaged her characters as they try and ultimately fail to live up to its ideals or use it as a means of escapism rather than face reality, Gaite can see both the negative and the positive contributions. Both recognise culture as something that crosses all political and class divides in its influence on society . The Bolero features in both, the title of Te Tratare com a una Reina is an ironic reference in itself a typical Bolero promise. Bella begins to believe in the promises of the Bolero. Rather than face the eality, she chooses to create a Bolero type image of Paco, which in turn is shattered. Montero subverts the convention of the Bolero. Paco beats Vanessa as he promises Te tratare como a una reina highlighting the sharp contrast between the male of the the time in making men and women accept the regime and its ideology but also recognised that singers such as those of Conchita Piquer offered a protest against the traditional gender roles by singing about those marginalised by society . Also upon hearing a Bolero, it inspired her, rather than be the perfect patient female, to rite a love letter Films influence is also alluded to in both texts. In el cuarto de atras, Gaite talks about US and Spanish films and actors. C recognises, while some of these supported state ideology, others offered an alternative model to gender identity formation For Antonia, they gave her false expectations of her first kiss and dreams of Hollywood offer Vanessa an escapism rather than face reality. C talks of how the female role models of the novela rosa helped to back up the regimes perception of female gender identity in which women were practical, passive, optimistic and never complained. Stories ended with marriage as the happy and normal conclusion . C also talks of talks of the Y magazine, through which the Seccion Feminina also helped form a female identity that was in tune with the regimes ideas. Montero damns the escapist element of culture, seeing it as having a wholly negative impact for the formation of realistic identities for both the male and female characters. Gaite on the under hand, sees the escapist element of the popular culture as a way that offered women respite from the Franco ideology, stimulated creativity and offered alternative female roles, allowing them to shape different dentitys that those that the regime supported Both texts also incorporate aspects of popular culture as part of the metaphysical narrative. C shows Just how much this popular culture had on shaping her identity when she compares her situation with el hombre negro casting him as the hero of one of those books, Raimundo. The structure of the novel in many ways resembles that of a novel rosa and C herself recognises that it is impossible for her to escape these conventions in her writing . C also recognises the influence that these works had on inspiring her to write. It ncorporates convention of other genres such as mystery, psychoanalytical and Bildungsroman, reinforcing the idea that popular culture had an impact on her as a writer and thus her identity. Montero incorporates the fictional article by Mancebo into the text. She does this to highlight a number of issues in relation to gender identity. She shows that culture and the public voice is dominated by the male voice, that the language of the media reinforces gender roles and throughout the rest of the story she highlights Just how much influence popular culture such as the article ave identity formation. Both sexes illustrate a belief in these stereotypes throughout. Mary C Harges sees elements of the novela negra in this book as Montero inhabits a more ambiguous imaginary world beyond familiar horizons . Throughout the bolero becomes more and more entangled with Bellas thoughts as she moves further away from reality. The incorporation of different genres into the texts reinforces perception of cultures influence, especially on the formation of self identity. In conclusion, both language and popular culture have an important role in oth novels in the influencing of identity and the readers perception of it. Montero once stated Escribir es un Juego para m and indeed the playful and experimental element of both novels is clearly seen in both novels by their metaphysical blurring norms.

Growing Up In a Small Town essays

Growing Up In a Small Town essays Growing up in a small town out in the country, an hour away from any city, riding my horse was what I did with my friends, or alone. I started riding horses when I was 7 years old, and my parents bought me my first horse when I was 11. From the ages of 7-27 years old, I owned and rode horses. I would ride in the woods, along the rivers and railroad tracks, through town, it didnt matter to me, I just went. My best friend and I would even tie our horses outside the town store on the bike rack and go inside, old school style. I did rides at birthday parties for little kids, I taught friends and family how to ride, I even got into 4H and did gaming for a while; I absolutely loved barrel racing, and I got pretty good too. To not have a horse now or to even be around them anymore is very hard, and I feel as if a part of me is missing, theres just a slight void there. I was 26, my husband and I had been married for 6.5 years and we finally had our first child that weve been trying to have for nearly 5 years. I felt I had to choose between my son and my horse, and that wasnt fair to any of us. My son was around Dexter since he was 2-3 months old; he was going to the barn with me every day, watched me ride, groom him, and then feed him, and he loved it all! I believe the feeling was mutual between the two of them because my son would put his hand up Dexters nose, and all he would do is either lick or sniff him. Dexters ears were always up and perky whenever my son made any noise, and Dexter would want to go check on him, as if it were his own colt. It was very comical to watch actually; a newborn baby and a 16.3 Thoroughbred horse bonding, it was amazing to see. My son was 9 months old when I decided to sell Dexter, and now he is 3 years 9 months and he loves horses. This makes me very happy and excited for our future, because I have a goa l to have another horse when my son is 5-6 years old,...

Primary Standards in Chemistry

Primary Standards in Chemistry In chemistry, a primary standard is a reagent which is very pure, representative of the number of moles the substance contains and easily weighed. A reagent is a chemical that is used to cause a chemical reaction with another substance. Often, reagents are used to test for the presence or quantity of specific chemicals in a solution. Properties of Primary Standards Primary standards are typically used in titration to determine an unknown concentration and in other analytical chemistry  techniques. Titration is a process in which small amounts of a reagent are added to a solution until a chemical reaction occurs. The reaction provides confirmation that the solution is at a specific concentration. Primary standards are often used to make standard solutions (a solution with a precisely known concentration). A good primary standard meets the following criteria: high level of puritylow reactivity (high stability)high equivalent weight (to reduce error from mass measurements)not likely to absorb moisture from the air (hygroscopic) to reduce changes in mass in humid versus dry environmentsnon-toxicinexpensive and readily available In practice, few chemicals used as primary standards meet all of these criteria, although its critical that  a standard is of high purity. Also, a compound which may be a good primary standard for one purpose may not be the best choice for another analysis. Examples of Primary Standards and Their Uses It may seem odd that a reagent is needed to establish the concentration of a chemical in solution. In theory, it should be possible to simply divide the mass of the chemical by the volume of the solution. But in practice, this isnt always possible. For example, sodium hydroxide (NaOH) tends to absorb moisture and carbon dioxide from the atmosphere, thus changing its concentration. A 1-gram sample of NaOH may not actually contain 1 gram of NaOH because additional water and carbon dioxide may have diluted the solution. To check the concentration of NaOH, a chemist must titrate a primary standard (in this case a solution of potassium hydrogen phthalate (KHP). KHP does not absorb water or carbon dioxide, and it can provide visual confirmation that a 1 gram solution of NaOH really contains 1 gram. There are many examples of primary standards; a few of the most common include: Sodium chloride (NaCl) is used as a primary standard for silver nitrate (AgNO3) reactions.Zinc powder may be used to standardize EDTA solutions after it has been dissolved in hydrochloric acid or sulfuric acid.Potassium hydrogen phthalate or KHP may be used to standardize perchloric acid and an aqueous base in an acetic acid solution. Secondary Standard Definition A related term is secondary standard. A secondary standard is a chemical that has been standardized against a primary standard for use in a specific analysis. Secondary standards are commonly used to calibrate analytical methods. NaOH, once its concentration has been validated through the use of a primary standard, is often used as a secondary standard.

Changes in media and its effects on personal, social and work lives Essay

Changes in media and its effects on personal, social and work lives - Essay Example However, all this came to change with the fast development of technology. Before we knew it, we had television, and all this changed everything because we could not only hear the news but could also see who was presenting it as well as videos of the news itself. It has indeed been a privilege for me to live long enough to see the development of media from its infancy to where it is today. Question: What are your feelings concerning the development of the Internet and social networking? Granddad: it is quite fascinating how the technology for transmitting media has developed and how fast that development has been. The things that we used to think were impossible have now become reality and this is something quite extraordinary. The Internet is a technology that I did not become aware of until sometime in the mid nineties when it was first introduced to me. I found it to be most useful because I could use email to send information, which I would have otherwise sent by mail, and I could find information instantly online, without having to go to a library, as used to be the case. I have come to adapt to this new technology like a fish in water, because it has made my life all much easier, especially now that I do not move around as much as I used to. I am an avid user of social networking sites such as Facebook, where I have come to encounter plenty of information as well as made many friends. I have also been able to rekindle old relationships with people whom I knew when I was younger, but life put us in different paths. Furthermore, the different sources of news have ensured that any biased news can be detected. I personally prefer watching news online and during the Iraq War, recently, I used to watch Al Jazeera and BBC to get a balanced picture of the news. Question: Which media do you think has managed to survive way into the modern times? Granddad: In my opinion, I believe that television, and most especially cartoons, have not lost the charm that kept peopl e hooked to them. When I was young, I used to love the Disney cartoons and I followed them every chance I got. I still see the same fascination in cartoons among kids today and this, I believe, is continuity. Personally, I am still a huge fan of cartoons because they not only remind me of my younger days but also make me laugh, something that I have to admit, has become extremely rare for me in other forms of entertainment. Question: What was the relationship between politicians and media, and has this relationship changed? Granddad: In previous decades, it was extremely difficult to find politicians who were open with any form of media. In fact, media was always treated with suspicion because of the belief that their main purpose was to destroy political careers by creating scandals. This, I believe, has changed since many politicians have come to embrace the media to further their own political careers. President Obama in the United States is an example of this new trend among pol iticians. He has used the media so well that he has managed to maintain his popularity where other presidents would have fallen from grace. I may add that media has come to influence change in society because without it, the Americans would not have been able to elect a black president. Essay Media has experienced plenty of changes, especially from the mid twentieth century to the present day. It has not only led to the development of better means of communication between people but has