Tuesday, May 26, 2020

What Astronomers Mean By Thermal Radiation

Thermal radiation sounds like one a geeky term youd see on a physics test. Actually, its a process that everyone experiences when an object gives off heat. It is also called heat transfer in engineering and black-body radiation in physics. Everything in the universe radiates heat. Some things radiate much MORE heat than others. If an object or process is above absolute zero, its giving off heat. Given that space itself can be only 2 or 3 degrees Kelvin (which is pretty darned cold!), calling it heat radiation seems odd, but its an actual physical process.   Measuring Heat Thermal radiation can be measured by very sensitive instruments — essentially high-tech thermometers. The specific wavelength of radiation will entirely depend on the exact temperature of the object. In most cases ,the emitted radiation isnt something you can see (what we call optical light). For example, a very hot and energetic object might radiate very strongly in x-ray or ultraviolet, but perhaps not look so bright in visible (optical) light. An extremely energetic object might emit gamma rays, which we definitely cant see, followed by visible or x-ray light.    The most common example of heat transfer in the field of astronomy what stars do, particularly our Sun. They shine and give off prodigious amounts of heat. The surface temperature of our central star (roughly 6,000 degrees Celsius) is responsible for the production of the white visible light that reaches Earth. (The Sun appears yellow due to atmospheric effects.) Other objects also emit light and radiation, including solar system objects (mostly infrared), galaxies, the regions around black holes, and nebulae (interstellar clouds of gas and dust).   Other common examples of thermal radiation in our everyday lives include the coils on a stove top when they are heated, the heated surface of an iron, the motor of a car, and even the infrared emission from the human body. How it Works As matter is heated, kinetic energy is imparted to the charged particles that make up the structure of that matter. The average kinetic energy of the particles is known as the thermal energy of the system. This imparted thermal energy will cause the particles to oscillate and accelerate, which creates electromagnetic radiation (which is sometimes referred to as  light). In some fields, the term heat transfer is used when describing the production of electromagnetic energy (i.e. radiation/light) by the process of heating. But this is simply looking at the concept of thermal radiation from a slightly different perspective and the terms really interchangeable. Thermal Radiation and Black-body Systems Black body objects are those that exhibit the specific properties of perfectly absorbing every wavelength of electromagnetic radiation (meaning that they would not reflect light of any wavelength, hence the term black body) and they also will perfectly emit light when they are heated. The specific peak wavelength of light that is emitted is determined from Wiens Law which states that the wavelength of light emitted is inversely proportional to the temperature of the object. In the specific cases of black body objects, the thermal radiation is the sole source of light from the object. Objects like our Sun, while not perfect blackbody emitters, do exhibit such characteristics. The hot plasma near the surface of the Sun generates the thermal radiation that eventually makes it to Earth as heat and light.   In astronomy, black-body radiation helps astronomers understand an objects internal processes, as well as its interaction with the local environment. One of the most interesting examples is that given off by the cosmic microwave background.   This is a remnant glow from the energies expended during the Big Bang, which occurred some 13.7 billion years ago. It marks the point when the young universe had cooled enough for protons and electrons in the early primordial soup to combine to form neutral atoms of hydrogen. That radiation from that early material is visible to us as a glow in the microwave region of the spectrum. Edited and expanded by Carolyn Collins Petersen

Friday, May 15, 2020

The End Of Forever - Original Writing - 995 Words

The end of forever. Best friends forever, well that s what I thought. Turns out forever came sooner than expected. I had a best friend who was like a sister to me. We raised, confide our darkest secrets, trusted, and loved each other. I thought with a friendship that close nothing can come between us, not boys, not our parents, not jealousy or little arguments. The thing is, sometimes friendship ends, because people grow apart. It’s better to go separate ways, than to force a friendship for what it’s not anymore. We meet new people in unexpected ways, and places. I can never forget the first day I met Zandra, who I consider my first best friend from my childhood. I was a shy fifth grader who didn’t had many friends. The new kid on the block, I knew no one. I was walking home from school when Zandra approached me, and said â€Å"You live on the 4th floor of our building right, Do you want to hang out.† I was a little surprised, because she was the total opposite of me back then. That afternoon we played on the sidewalk until our parents called us in for dinner, and we continue to hanged out many more afternoons after that. I knew we would become inseparable. That whole two years because I went to the seventh grade, she taught me how to ride a bike properly, we went on our first vacation trip, we spent our first Halloween, Thanksgiving, Christmas, and New year’s with each other families It was the first time I felt like I had someone who I can called my best friend. WeShow MoreRelatedIdentifying And Surveying F. Scott Fitzgerald s The Great Gatsby1675 Words   |  7 PagesWhilst analysing and surveying F. Scott Fitzgerald s fulfilling and creative way of writing, I present to you today the body of work in the context of the writers time, discussing and paying attention to the social, historical, cultural and political discourses within the text. F.Scott Fitzgerald constructs a variety of truths throughout the novel, the two truths that where clearly noticeable where â€Å"The American dream† and â€Å"Old and New Money† which greatly supported the normalities of the era, theseRead MoreFrankenstein, By Mary Shelley1376 Words   |  6 Pagesloosely based on the emotions of Mary Shelley from similar situations she was forced to experience throughout her lifetime. One of her most famous quotes show evidence that she sometimes felt like she was not ordinary in the eyes of most. â€Å"The act of writing may compose the mind†¦ but the boiling of the soul, and quake of the heart, that precede transcend all the sufferings which tame the spirit tame spirits feel† (Qwiklit). Young Mary was different from most of the women of her time because her love forRead More21st Century Cavemen : Technology1275 Words   |  6 Pagesprogresses. It can be defined as the â€Å"theft of another person s writings or ideas† (Phelps and Lehman). For example, if a student copy and pastes writing in their own work, from a different author, and does not give that author any credit, then that could be labeled as plagiarism. However, if they were to give credit and/or put the borrowed words in quotation marks, then it would no longer be plagiarism. Also, in students’ writing, â€Å"similarity alone is not †¦ plagiarism† (Phelps and Lehman), thoughRead MoreLove You Forever Analysis1029 Words   |  5 PagesLove You Forever Book Analysis By: Matthew Strong Love You Forever is a classic heart-warming story by Robert Munsch built around a simple, but eternally meaningful commitment from a mother to a child to love him forever. Robert Munsch has become a world-renowned author of children’s books for his unique use of exaggerated expressions that produce sounds that are very appealing and fun for children. In Love You Forever Munsch uses words like â€Å"crazy† and â€Å"zoo† to add the effect of comedy butRead MoreConte Poem Analysis Essay1006 Words   |  5 PagesLenae Gomez ENG 110.3 Professor Unger February 11, 2013 Au Contraire In â€Å"Conte† by Marilyn Hacker, Cinderella shows the reader a glimpse of her life after the childhood tale ends, a less happier ending than the original story implies. She feels trapped in a constant state of misery and boredom in the royal palace. Without life experience guiding her, Cinderella is in a dilemma caused by her ignorance of the potential consequences of her actions. With the use of irony, structure, and dictionRead MoreThe Iliad And The Odyssey1060 Words   |  5 PagesIliad pg.405) The quote is relevant to the stories Homer created during the period of the Trojan War. Homer orally performed two of his best works The Iliad and The Odyssey. Homer’s stories are old and probably translated differently than their original telling. Homer’s The Iliad and The Odyssey still show the basic human emotions and are an inspiration to other authors, poets, and oral presenters. Homer was forgotten, but now Homer’s existence is almost legend. According to Cynthia ShelmerdineRead MoreA Question Of Honor By William Chace850 Words   |  4 PagesQuestion of Honor†. Chace is able to use adequate reasoning to engage the reader in an article that depicts perspectives from every angle. Included within the article are a sense of sympathy, through explanations and even a proposed solution of how to end academic dishonesty. Colleges and Universities across America have enforced what they describe as strict admittance policies, that leave high school seniors fighting tooth and nail to receive an acceptance letter from the school of their dreamsRead MoreThe Rite of Spring Essay955 Words   |  4 Pagesalso what people in early 1900’s expected to see when they planned to attend a ballet. However, a couple of motivated artists in 1913 literally planned to change the design of ballet, music and dance forever. On May 29, 1913 a ballet named The Rite of Spring premiered in Paris, France. The original title as it translates from Russian to French is; Le Sacre du Printemps, meaning the rite of spring, but the literal translation from Russian to English means â€Å"Sacred Spring†. The ballet and music wereRead MoreOzymandias : A Sonnet Of Lost Time Essay1384 Words   |  6 Pagesperspective and understanding of this sonnet, I have deformed it in order to find the message at its core. But first a look at the history of this sonnet and why it was written, then a discussion on the deformation technique used and whether it changed the original message of the sonnet. Ozymandias was written as a form of commemoration of the British Museum’s new piece, a large fragment of the actual statue in the poem. In fact, the topic of the ravages of time on the statue of Ozymandias was so fascinatingRead MoreMath And Nature : Fibonacci Sequence1110 Words   |  5 Pagesnumbers that is created by adding the previous two numbers together. You take 1 then add 0 to get the second number which is 1, then you’ll add 1 and 1 to get 2, after that you’ll add 1 and 2 to get 3, and so on. The sequence can continue this way forever. For example the first ten numbers in the sequence are 1, 1 ,2 ,3 ,5 ,8 ,13 ,21 ,34 ,55. The Fibonacci Sequence was named after Leonardo Pisano Bogollo (He lived between 1170-1250) whose nickname was Fibonacci. He did an investigation in 1202 about

Wednesday, May 6, 2020

When The King Took Flight Essay - 1259 Words

Sunny Duong HIST 426 10/17/12 When the King Took Flight In June 1791, King Louis XVI and his family snuck out of Paris during the night, hoping to escape from the French Revolution and its violence. He planned to escape the country and return with foreign assistance to reclaim control of France, but the people of Varennes stopped and detained him until authorities arrived and sent him back to Paris. Louis’ attempted escape, in addition to the letter he left behind denouncing the Revolution, â€Å"profoundly influenced the political and social climate of France† (223). His escape outraged many people and left the administration in shambles, and this caused tensions to break out. To control the situation, the people of France quickly organized†¦show more content†¦In this letter, he disapproved of the reduction of his royal powers and personal wealth, which affected his lifestyle and authority. He denounced the Revolution, National Assembly, and its constitution. Copies of the letter circulat ed in public and revealed to people that â€Å"Louis had lied to the French† when he swore an oath â€Å"before God and the nation to uphold the constitution† (102). Not only did he leave behind his people but his flight would have led to a civil war between revolutionaries and loyalists aided by foreigners. On top of that, deputies of the National Assembly dealt with the aftermath of a missing king: paranoid Parisians suspecting a conspiracy, people storming the palace, and palace servants being accused of treason. This added to the â€Å"profound sense of desertion and betrayal† by a king that people saw as a â€Å"good father† (222). Out of disgust, they denounced Louis: calling him all sorts of names, took down portraits of him, and covered â€Å"in black the word royal† on signs, buildings, and other public places (110). The â€Å"myth of the kingship had been shattered† because nobody knew what to do with Louis at this time (104, 108). Some wanted exile or imprisonment whereas others suggested reinstating him as only a figurehead, and some thought about a â€Å"republic without a king† (108). Either way, they no longerShow MoreRelatedWhen the King Took Flight Essay703 Words   |  3 PagesWhen The King Took Flight There are many events that happened in history that makes the world how it is today. Many people don’t realize that society has changed dramatically from the 17th century to now. In those days they dealt with a different type of government system, (monarchy) in which the king is in control of the government. Some kings are great in which they run their country well and have the respect of those around them and beneath them in society, and you also have those who don’tRead MoreAnalysis Of Timothy Tackett s When The King Took Flight Essay960 Words   |  4 PagesIn Timothy Tackett’s When the King Took Flight, it’s explained how Louis XVI’s flight to Varennes resulted in escalating events to happen in the French Revolution that changed and shaped the history of France. In his flight to escape the revolution and upon his capture, he unintentionally created a domino effect that rippled throughout France with consequences that were far from his origi nal plans when attempting to escape the country. This essay will explain how the flight to Varennes radicalizedRead MoreThe Death Of Louis Xvi And Marie Antoinette1374 Words   |  6 PagesIn June of 1791, the French revolution witnessed one of its most dramatic events. King Louis XVI and Marie-Antoinette, the Austrian born queen, escaped there parisian palace, the Tuileries. They fled Paris on the night of June 20th, dressed in rather inadequate disguises heading towards France’s eastern border. Prior to the escape, Louis had entailed a telling declaration in which he essentially renounced the constitutional monarchy, contradictory to previously expressing his support. However planRead MoreToward the Terror1257 Words   |  6 Pagesthe Terror. While some insist that the Revolution’s culmination at this point was inevitable, others assert that key events between 1789 and 1793 set the Revolution on this particular trajectory. Siding with the latter, I argue that King Louis XVI’s attempted flight in 1791 was an incredibly significant turning point in the Revolution, as its social and political consequences played a vital role in placing the Revolution on the path toward the Terror. While it is impossible to definitively say thatRead MoreWhat Caused The French Revolution?1544 Words   |  7 Pagescaused the French Revolution to radicalize? Historians such as Timothy Tackett and David A. Bell explore that question implicitly in When the King Took Flight and The First Total War respectively. Although they are two profoundly different books, both point to fear as a causal force in the radicalization of the Revolution. However, Tackett suggests that the flight of the King created fears of counterrevolutionary conspiracies and suspicion as a result of France’s regime changes and polarization and thusRead MoreThe Consequences of the French Revolution in Timothy Tacketts Book, When the King Took Fligh937 Words   |  4 PagesTimothy Tacke tt’s book When the King Took Flight focuses on arguably the most consequential event in the French Revolution. King Louis XVI and his family’s attempt to escape France would influence an atmosphere of violence that would only continue to worsen. King Louis XVI regretted signing and accepting the Civil Constitution of the Clergy earlier in July 1790. Deciding to flee the country he assumed that through foreign intervention or negotiating he could change parts of the constitution heRead MoreSouthwest Culture1113 Words   |  5 Pagescompany spirit.† Southwest Airlines was born in 1971, to Herb Kelleher and Rollin King. And this baby has yet to stop growing. Kelleher and King wanted to provide low cost, safe, and frequent airline service to the Dallas, Houston, and San Antonio area. Now they provide these same services to more than 100 destinations worldwide. Its success is built on a signature style of low costs, low fares, frequent flights and a quick expansion into new cities and countries. During Southwest’s’ first yearRead MoreThe Death Of The Red Death By Edgar Allan Poe1633 Words   |  7 PagesRed Death sweeping throughout his kingdom killing all it comes into contact with. Prospero s fight or flight reaction, a built in mechanism inside all humans and his reaction to fear of his own death ultimately lead to his downfall and instead of keeping him alive prove unable to beat the elutable and all mighty red death. Picture a scenario where you are put to the test to see your own flight or fight reaction, you and a few friends are on the train chatting about everyone’s most embarrassing momentsRead MoreImpact Of Nationalism On European Populations925 Words   |  4 Pageshighly intriguing work titled When the King Took Flight. This work sought to explore the events surrounding one of the most influential occurrences during the French Revolution. In 1789, a period of economic, social, and political upheaval settled across the breadth of France as the French Revolution began. The authority of the monarchy was limited, and it appeared, for a short time at least, that France might have embraced a constitutional monarchy. However, the French King Louis XVI began to fear forRead MoreThe Causes And Effects Of Europe945 Words   |  4 Pageseconomic paradigms of the nation where the revolution took place. To put it bluntly, a European nation that experienced any form of a revolution, regardless of time period and location, was forever altered from what it had been prior to the revolutionary event. Case and point, take the case of 18th century revolutionary France. The French Revolution, without question, was a truly violent affair which eventually culminated in the beheading of the French King Louis XVI and his wife Queen Marie Antoinette

Tuesday, May 5, 2020

The Irony In free essay sample

# 8216 ; The Lottery # 8217 ; Essay, Research Paper The Irony in # 8220 ; The Lottery # 8221 ; Shirley Jackson wrote the narrative # 8220 ; The Lottery. # 8221 ; A lottery is typically thought of as something good because it normally involves winning something such as money or awards. In this lottery it is non what they win but it is what is lost. Point of positions, state of affairss, and the rubric are all dry to the narrative # 8220 ; The Lottery. # 8221 ; The point of position in # 8220 ; The Lottery # 8221 ; is dry to the result. Jackson used 3rd individual dramatic point of position when composing # 8220 ; The Lottery. # 8221 ; The 3rd individual dramatic point of position allowed the writer to maintain the result of the narrative a surprise. The result is dry because the readers are led to believe everything is all right because we do non truly cognize what anyone is believing. This point of position enables the stoping to be ironic. The state of affairss in # 8220 ; The Lottery # 8221 ; are dry. We will write a custom essay sample on The Irony In or any similar topic specifically for you Do Not WasteYour Time HIRE WRITER Only 13.90 / page The writer # 8217 ; s usage of words keeps the reader believing that there is nil incorrect and that everyone is all right. The narrative starts by depicting the twenty-four hours as # 8220 ; clear and cheery # 8221 ; ( 309 ) . The people of the town are happy and traveling on as if it is every other twenty-four hours. The state of affairs where Mrs. Hutchinson is jestingly stating to Mrs. Delacroix # 8220 ; Clean forgot what twenty-four hours it was # 8221 ; ( 311 ) is dry because something that is so awful can non genuinely be forgotten. At the terminal of the narrative when Mrs. Hutchinson is chosen for the lottery, it is dry that it does non upset her that she was chosen. She is disquieted because of the manner she is chosen. She shows this by stating # 8220 ; It i sn’t carnival, it isn’t right† ( 316 ) . The state of affairs is highly dry to the narrative. The rubric of the narrative # 8220 ; The Lottery # 8221 ; is dry. By reading the rubric of the narrative the reader may believe that person is traveling to win something. In actuality when the reader gets to the terminal of the narrative, he finds merely the opposite to be true. Jackson shows every twenty-four hours as if it is any other summer twenty-four hours. Jackson foreshadows the events to come by authorship: School was late over for the summer. . . Bobby Martin had already stuffed his pockets full of rocks, and the other male childs shortly followed his illustration, choosing the smoothest and circular rocks ; . . . finally made a heap of rocks in one corner of the square and guarded it against the foraies of other male childs. ( 310 ) After reading this, the reader thinks the kids are merely roll uping rocks because that is what kids do. They do non anticipate the result to turn out like it does. The rubric has the reader believing that something good is traveling to go on, and will non cognize any different until the terminal of the narrative. The point of position, state of affairs, and title all contribute to the sarcasm in the narrative. These are all every bit of import to the sarcasm and without them the narrative would non hold been as interesting as it was. If these were non included so the narrative would non be the same and would non maintain the readers # 8217 ; involvement. Work Cited Jackson, Shirley. # 8220 ; The lottery # 8221 ; Literature: Reading, Reacting, Writing. Ed. Laurie G. Kirszner and Stephen R. Mandell. Third Ed. Fort Worth: Harcourt, 1997. 309-16.