Saturday, March 21, 2020

The Giver (synopsis of main character) Essay Example For Students

The Giver (synopsis of main character) Essay The Giver Main Character Jonas, the main character in The Giver by Lois Lowry, is a very strong person, which allows him to go farther in life then the people that surround him. Throughout Jonass life he has known nothing but ;sameness;. He lives in a Utopian community where there are no choices and everyone in his world has their lives laid out for them. But, Jonas is given the job of ;Receiver of Memory;. He alone knows the truths of the world, a world with colors, pain, and choices. We will write a custom essay on The Giver (synopsis of main character) specifically for you for only $16.38 $13.9/page Order now What he does with these truths will bring obstacles to his life that will show the readers not only his strengths but his weaknesses as well. Jonas is made to bear the truths of the world alone and is troubled by what he should do with it. Jonas at first doesnt want the memories because after receiving several of them, all that Jonas has known is being questioned and his world turned upside down. He is angry and afraid after receiving his first set of memories. Angry because of what has been kept from him and afraid because now he doesnt know what to do. Jonas is uncertain whether the world he learns of is best for his community and if people can be trusted to make decisions on their own. In a conversation to The Giver (person passing down the memories) about whether or not it is safe to allow people to make their own choices, Jonas say, What if they are allowed to choose their own mate? And chose wrong? . . . We really have to protect people from wrong choices. But, by the end of that conversation he is uncertain about his feelings and about many other things. Jonas is confused because he doesnt know what he should do about it or if he should do anything at all. Jonas finally decides to change the world (at least the one he knows of), but he faces many obstacles trying to do so. Jonas speaks to the Giver about giving memories to the community . He wants to share them with everyone and change the way the community works. He wants to give them choices and show them that there are differences. The Giver says the only way the community will receive them is if Jonas goes to the beyond and loses his connection to them. Then and only then will the memories be released. Meaning Jonas must leave all his family and friends and go out into the unknown. Jonas is willing to take that chance, only for the sake of the new child in his family, Gabriel, whom he desperately wants to save. Jonas decides to go even though it means leaving his world behind for a new world he knows nothing about. Through Jonass problems the reader is able to see his weaknesses and strengths. Jonass only evident weakness is ignorance. Even though Jonas is given all the knowledge of the world he is still unsure about everything. At first he doesnt realize the magnitude of importance his job has. He doesnt grasp the idea that whatever he decides to do with his knowledge with change the community forever. He takes on his work and the decisions he makes lightly without considering the effects that he wHI have on others. At many times he is selfish because he doesnt have experience in making choices and doesnt realize how much his choices can and who effect others. Jonass main strength is that he is very strong in mind. His world has been changed forever and all he ever thought was true is wrong, but throughout this he has remained strong. .uedc4fcf93959c76f6310569304c01863 , .uedc4fcf93959c76f6310569304c01863 .postImageUrl , .uedc4fcf93959c76f6310569304c01863 .centered-text-area { min-height: 80px; position: relative; } .uedc4fcf93959c76f6310569304c01863 , .uedc4fcf93959c76f6310569304c01863:hover , .uedc4fcf93959c76f6310569304c01863:visited , .uedc4fcf93959c76f6310569304c01863:active { border:0!important; } .uedc4fcf93959c76f6310569304c01863 .clearfix:after { content: ""; display: table; clear: both; } .uedc4fcf93959c76f6310569304c01863 { display: block; transition: background-color 250ms; webkit-transition: background-color 250ms; width: 100%; opacity: 1; transition: opacity 250ms; webkit-transition: opacity 250ms; background-color: #95A5A6; } .uedc4fcf93959c76f6310569304c01863:active , .uedc4fcf93959c76f6310569304c01863:hover { opacity: 1; transition: opacity 250ms; webkit-transition: opacity 250ms; background-color: #2C3E50; } .uedc4fcf93959c76f6310569304c01863 .centered-text-area { width: 100%; position: relative ; } .uedc4fcf93959c76f6310569304c01863 .ctaText { border-bottom: 0 solid #fff; color: #2980B9; font-size: 16px; font-weight: bold; margin: 0; padding: 0; text-decoration: underline; } .uedc4fcf93959c76f6310569304c01863 .postTitle { color: #FFFFFF; font-size: 16px; font-weight: 600; margin: 0; padding: 0; width: 100%; } .uedc4fcf93959c76f6310569304c01863 .ctaButton { background-color: #7F8C8D!important; color: #2980B9; border: none; border-radius: 3px; box-shadow: none; font-size: 14px; font-weight: bold; line-height: 26px; moz-border-radius: 3px; text-align: center; text-decoration: none; text-shadow: none; width: 80px; min-height: 80px; background: url(https://artscolumbia.org/wp-content/plugins/intelly-related-posts/assets/images/simple-arrow.png)no-repeat; position: absolute; right: 0; top: 0; } .uedc4fcf93959c76f6310569304c01863:hover .ctaButton { background-color: #34495E!important; } .uedc4fcf93959c76f6310569304c01863 .centered-text { display: table; height: 80px; padding-left : 18px; top: 0; } .uedc4fcf93959c76f6310569304c01863 .uedc4fcf93959c76f6310569304c01863-content { display: table-cell; margin: 0; padding: 0; padding-right: 108px; position: relative; vertical-align: middle; width: 100%; } .uedc4fcf93959c76f6310569304c01863:after { content: ""; display: block; clear: both; } READ: Hobby and Sport Essay For a mere 12-year-old Chad, Jonas has shown strengths that most adults never possess. He has the strength to endure the pain and suffering he is forced to deal with and the strength to do something about it. Jonass ignorance and strength are evident when the Giver gives him the memories. Jonass efforts are successful in some ways. He does manage to leave the community and is strong enough to carry on throughout his adventure into the unknown. Lowry never states whether his old community has .

Thursday, March 5, 2020

Cobalt Facts and Physical Properties

Cobalt Facts and Physical Properties Atomic Number: 27 Symbol: Co Atomic Weight: 58.9332 Discovery: George Brandt, circa 1735, maybe 1739 (Sweden) Electron Configuration: [Ar] 4s2 3d7 Word Origin: German Kobald: evil spirit or goblin; Greek cobalos: mine Isotopes: Twenty-six isotopes of cobalt ranging from Co-50 to Co-75. Co-59 is the only stable isotope. Properties Cobalt has a melting point of 1495Â °C, boiling point of 2870Â °C, specific gravity of 8.9 (20Â °C), with a valence of 2 or 3. Cobalt is a hard, brittle metal. It is similar in appearance to iron and nickel. Cobalt has a magnetic permeability around 2/3 that of iron. Cobalt is found as a mixture of two allotropes over a wide temperature range. The b-form is dominant at temperatures under 400Â °C, while the a-form predominates at higher temperatures. Uses Cobalt forms many useful alloys. It is alloyed with iron, nickel, and other metals to form Alnico, an alloy with exceptional magnetic strength. Cobalt, chromium, and tungsten may be alloyed to form Stellite, which is used for high-temperature, high-speed cutting tools and dies. Cobalt is used in magnet steels and stainless steels. It is used in electroplating because of its hardness and resistance to oxidation. Cobalt salts are used to impart permanent brilliant blue colors to glass, pottery, enamels, tiles, and porcelain. Cobalt is used to make Sevres and Thenards blue. A cobalt chloride solution is used to make a sympathetic ink. Cobalt is essential for nutrition in many animals. Cobalt-60 is an important gamma source, tracer, and radiotherapeutic agent. Sources: Cobalt is found in the minerals cobaltite, erythrite, and smaltite. It is commonly associated with ores of iron, nickel, silver, lead, and copper. Cobalt is also found in meteorites. Element Classification: Transition Metal Cobalt Physical Data Density (g/cc): 8.9 Melting Point (K): 1768 Boiling Point (K): 3143 Appearance: Hard, ductile, lustrous bluish-gray metal Atomic Radius (pm): 125 Atomic Volume (cc/mol): 6.7 Covalent Radius (pm): 116 Ionic Radius: 63 (3e) 72 (2e) Specific Heat (20Â °C J/g mol): 0.456 Fusion Heat (kJ/mol): 15.48 Evaporation Heat (kJ/mol): 389.1 Debye Temperature (K): 385.00 Pauling Negativity Number: 1.88 First Ionizing Energy (kJ/mol): 758.1 Oxidation States: 3, 2, 0, -1 Lattice Structure: Hexagonal Lattice Constant (Ã…): 2.510 CAS Registry Number: 7440-48-4 Cobalt Trivia Cobalt derived its name from German miners. They named cobalt ore after mischievous spirits called kobalds. Cobalt ores commonly contain the useful metals copper and nickel. The problem with cobalt ore is it usually contains arsenic as well. Attempts to smelt the copper and nickel typically failed and would often produce toxic arsenic oxide gases.The brilliant blue color cobalt gives to glass was originally attributed to bismuth. Bismuth is often found with cobalt. Cobalt was isolated by Swedish chemist, Georg Brandt who proved the coloring was due to cobalt.The isotope Co-60 is a strong gamma radiation source. It is used to sterilize food and medical supplies as well as radiation therapy in the treatment of cancer.Cobalt is a central atom in vitamin B-12.Cobalt is ferromagnetic. Cobalt magnets stay magnetic to the highest temperature of any other magnetic element.Cobalt has six oxidation states: 0, 1, 2, 3, 4, and 5. The most common oxidation states are 2 and 3.The oldest cobalt col ored glass was found in Egypt dated between 1550-1292 B.C. Cobalt has an abundance of 25 mg/kg (or parts per million) in the Earths crust.Cobalt has an abundance of 2 x 10-5 mg/L in sea water.Cobalt is used in alloys to increase temperature stability and decrease corrosion. References: Los Alamos National Laboratory (2001), Crescent Chemical Company (2001), Langes Handbook of Chemistry (1952), CRC Handbook of Chemistry Physics (18th Ed.) International Atomic Energy Agency ENSDF database (Oct 2010) Return to the Periodic Table