The Physics Behind the Power of an Engine
Insert the key, turn, and vroom. And down the road you go. Most people take for granted the strange conglomeration of metal and plastic under that sheet of metal either in front or back of their vehicle. The engine as you may have guessed, is modern marvel- so to speak. They’re found in cars, trucks, boats, airplanes…All with various power outputs.
To discuss the power output, first the cycles of the engine itself needs to be mentioned.
1.Intake: The intake valve opens allowing fresh oxygen rich air mixed with fuel to enter the cylinder.
2.Compression: The piston is pushed upward by the flywheel's momentum compressing the air/fuel mix.
3.Combustion: As the piston reaches the top of its stroke or TDC, the spark plug fires, igniting the mixture. Due to the high compression of this mixture it is very volatile and it explodes when the spark is introduced. This pushes the piston downward and produces power.
4.Exhaust: After the Air/Fuel mix has been burnt the remaining chemicals in the cylinder (water and CO2 for the most part) must be removed so that fresh air can be brought in. As the piston goes back up after combustion the exhaust valve opens allowing the exhaust gasses to be released.
Ideally an engine takes in Air (Oxygen and Nitrogen) and fuel (hydrocarbons) and produces CO2, H2O, and the N2 just passes through. However under normal driving conditions an engine will encounter lean conditions when cruising on the highway (better mileage) and rich conditions when accelerating (better power). The lean condition results in oxide and harmful nitrogen production. Rich conditions result in carbon monoxide production. For this reason catalytic converters are used on an engine’s exhaust.
The catalyst material in a cat is in a wire mesh or honeycomb. This allows a high surface area to be exposed to the passing exhaust gasses. The catalyst converts the harmful nitrogen oxides and carbon monoxide into nitrogen, carbon dioxide, and oxygen.
Catalytic converters work best when warm, so some car manufacturers are putting "pre cats" in the exhaust manifold to convert the gasses while the exhaust system is still warming up.
Engine output is measured in two ways. The first is a direct measurement of engine output: Torque. Torque is defined as the amount of mass that can be lifted a certain distance from the center of rotation. Torque is what accelerates a car.
Sonny’s Blues written by James Baldwin appears to suggest that family and faith are important aspects in someone’s life and that each person has a different way of dealing with their own demons. The author writes with an expressive purpose and narrative pattern to convey his message and by analyzing the main characters, the point of view of the narration, the conflict in the story and the literary devices Baldwin utilizes throughout his tale, his central idea can be better understood.
A.Freewrite: I am going to write about the point of view used in Baldwin’s “Sonny’s Blues.” In James Baldwin’s “Sonny’s Blues,” Baldwin does not use Sonny as the narrator but instead uses his brother. I believe Baldwin used the brother as the narrator to give to give readers the idea that Sonny and his brother do not communicate well with each other. While Sonny listens but does not speak, his brother speaks but does not listen. Baldwin uses the brother as the narrator to highlight the idea that Sonny’s addiction to heroin, love of jazz music, and his melancholy are associated to Sonny’s lack of voice as well as control over his own life.
Baldwin, James. "Sonny's Blues." The Oxford Book of American Short Stories 1992: 409 - 439.
Baldwin, James. “Sonny’s Blues.” Literature: An Introduction to Fiction, Poetry, Drama, and Writing. Ed. X.J. Kennedy and Dana Gioia.12th ed. New York: Pearson, 2013. Print.
Several passages found throughout "Sonny's Blues" indicate that as a whole, the neighborhood of Harlem is in the turmoil of a battle between good and evil. The narrator describes Sonny's close encounters with the evil manifested in drugs and crime, as well as his assertive attempts at distancing himself from the darker side. The streets and communities of Harlem are described as being a harsh environment which claims the lives of many who have struggled against the constant enticement of emotional escape through drugs, and financial escape through crime. Sonny's parents, just like the others in Harlem, have attempted to distance their children from the dark sides of their community, but inevitably, they are all aware that one day each child will face a decisionb for the first time. Each child will eventually join the ranks of all the other members of society fighting a war against evil at the personal level so cleanly brought to life by James Baldwin. Amongst all the chaos, the reader is introduced to Sonny's special secret weapon against the pressures of life: Jazz. Baldwin presents jazz as being a two-edged sword capable of expressing emotions like no other method, but also a presenting grave danger to each individual who bears it. Throughout the the story, the reader follows Sonny's past and present skirmishes with evil, his triumphs, and his defeats. By using metaphorical factors such as drugs and jazz in a war-symbolizing setting, Baldwin has put the focus of good and evil to work at the heart of "Sonny's Blues."
Mid 20th century Harlem, it can be a depressing place for African Americans and their communities. In "Sonny's Blues" we learn about how the Narrator and his brother Sonny go through a tough time together in Harlem and how the blues gets them through the pain that occurred in Harlem at this time. Throughout the story there are four reoccurring themes, Suffering, Imprisonment, Redemption, and the blues. The themes play an interesting role into shaping the characters and reveal the authors intentions of the story.
Sonny’s Blues by James Baldwin works with the narrator and its younger brother Sonny. The narrator presents life changing moments between both himself and Sonny, although both are related they are both two very distinct individuals. In the beginning of the passage, it started off describing their critical living conditions in Harlem and how people were trapped in the projects while others were able to escape. Although some people were able to escape these living conditions it seemed as though the desperation of trouble would always be with them. The narrator expresses his thoughts on the subject through a complex picture of rage, an express of violent uncontrollable anger reflecting to the audience both external and internal by change, escape, trap, and racism.
Baldwin, James. “Sonny's blues.” Baldwin, James. Going to meet the man. New York: Dial Press, 1965.
Brothers tend to grow apart yet eventually find a way to revive an old beat up relationship. These brothers grew up on the rough streets of Harlem and went their separate ways. Sonny was a drug-addicted musician and his older brother was a high school algebra teacher with a family. The way the two brothers reunite through addiction, memories and strife make their bond seem stronger than ever. Sonny’s Blues, by James Baldwin, is a story about enlightenment through brotherhood when Sonny and his brother go to the club.
“The Fuel & Engine.” Car Bibles. N.p., 15 Dec. 2013. Web. 23 Feb. 2014. .
The short story Sonny’s Blues by James Baldwin is written in first person through the narrator. This story focuses on the narrator’s brother sonny and their relationship throughout the years. This story is taken place in Harlem, New York in the 1950s. The narrator is a high school algebra teacher and just discovered his brother in the newspaper. This story includes the traditional elements to every story, which consist of the exposition, conflict, rising action, climax, falling action, and the resolution.
In James Baldwin’s “Sonny’s Blues,” the unspoken brotherly bond between the narrator and his younger brother Sonny is illustrated through the narrator’s point of view. The two brothers have not spoken in years until the narrator receives a letter from Sonny after his daughter dies. He takes this moment as an important sign from Sonny and feels the need to respond. While both Sonny and the narrator live in separate worlds, all Sonny needs is a brother to care for him while the narrator finds himself in the past eventually learning his role as an older brother.
James Baldwin, author of Sonny’s Blues, was born in Harlem, NY in 1924. During his career as an essayist, he published many novels and short stories. Growing up as an African American, and being “the grandson of a slave” (82) was difficult. On a day to day basis, it was a constant battle with racial discrimination, drugs, and family relationships. One of Baldwin’s literature pieces was Sonny’s Blues in which he describes a specific event that had a great impact on his relationship with his brother, Sonny. Having to deal with the life-style of poverty, his relationship with his brother becomes affected and rivalry develops. Conclusively, brotherly love is the theme of the story. Despite the narrator’s and his brother’s differences, this theme is revealed throughout the characters’ thoughts, feelings, actions, and dialogue. Therefore, the change in the narrator throughout the text is significant in understanding the theme of the story. It is prevalent to withhold the single most important aspect of the narrator’s life: protecting his brother.
Stage 3 of Erickson's theory of personality development lasts from 3 to 6 years of age and it is the stage in which the child becomes aware of their independence and that they do not always have to do what their parents say. It is called Initiative versus guilt because they take the initiative to do as they please and at the same time feel guilty that they do not obey the rules given to them. The conflicting question during this age is "am I good or am I bad?". If a divorce occurs at this stage, the child might believe that something they have done caused them to do so, filling the child with guilt.
First, Red eye accrue due to conjunctivitis. Conjunctivitis, which is commonly called pink eye, is an infection or swelling in the eye area. The effect of viruses, bacteria's, and allergies, is pink eye disease. Viral conjunctivitis is contagious, and it is the result of infection from herpes simplex virus (HSV), varicella zoster virus (VZV), or human immune deficiency virus (HIV). Bacterial conjunctivitis has common causes including taphylococci, streptococci, gonococci, and Chl...