Chemistry in Daily Life Essay Example for Free

Chemistry in Daily Life Essay 1.You feel hungry because of the satiety center in your brain falls short of particular hormones to function and then sends the signal of hunger. 2.You fall in love, get attracted and have a feeling of belonging because of certain monoamines present in your brain which get stimulated through nerve sensors. 3.If you have wondered, why is the sky blue, it is due to a phenomenon called the Rayleigh scattering, which depends on scattering of light through particles which are much smaller than the wavelength. Hence when light passes through gases, there is scattering and the sky appears blue. 4.Coffee keeps you awake because of the presence of a chemical called adenosine, in your brain. It binds to certain receptors and slows the nerve cell activity when sleep is signaled. 5.Anaerobic fermentation is also a great concept which is present in the chemistry of everyday life. It is present in yogurt, breads, cakes and many other baking products. It is the multiplication of certain useful bacteria which increase the size of the food and make it more filling and soft. 6.Soap is formed by molecules with a head which likes water (hydrophilic) and a long chain which hates it (hydrophobic). 7.Lactose is the main complex sugar found in the milk. Its a pretty big compound formed by two smaller components: glucose and galactose. Such a big compound cannot get through the intestinal wall and into the bloodstream, so we need something to break it into smaller pieces. This something is an enzime named lactase. The more milk and milk products we consume, the more lactase we need. 8.The iodised salt is a necessary intake. It prevents a disease called goitre. 9.In the garden we use sprays to kill insects from attacking our plants. 10.Vermiwash is a liquid fertilizer. It isused as a leaf spray.

Sherman Alexie Essay -- Biography Biographies Essays

Sherman Alexie The odds were against Sherman Alexie on that day in October 1966. Not only was he born a minority, but he was also hydrocephalic. At the age of 6 months, he had a brain operation, but was not expected to live. Though he pulled through, doctors predicted he would be severely mentally retarded. Fortunately, they were wrong, but he did suffer through seizures and wet his bed throughout his childhood ("What" 1). Rather than being called "Native American," which he feels is a "guilty white liberal term," he prefers to be called Indian. He is a Spokane/Coeur d’Alene Indian, in fact, and grew up on the Spokane Indian Reservation in Wellpinit, Washington. To avoid being picked on by the other reservation kids, he spent most of his time indoors, where he developed a love for reading. But as he grew older, alcoholism, which plagues most reservations, found its way to Alexie, and he suffered this disease for five years until he became sober at 23 ("What" 1). He graduated high school with honors and originally planned to become a doctor until a fainting episode in a Human Anatomy class changed his mind. He attended Gonzaga University on scholarship and graduated in American Studies from Washington State. He then received two consecutive Fellowships in 1991 and 1992, and shortly thereafter wrote six poetry and poem/short story books. Two of these, The Business of Fancy Dancing and The Lone Ranger and Tonto Fist Fight in Heaven, earned him literary awards (What" 1). By 1998, his list of accomplishments grew to include Reservation Blues (1995), which earned him Granta’s Best of Young Novelists, the Before Columbus Foundations Book Award, and the Murray Morgan Prize. Indian Killer (1996), his second novel, was The New Yo... ... reders in and keep them turning pages. He writes so visually that they feel they are actually there with the other characters. But most importantly, his stories make them think, not only about the characters and what is happening to them in the stories, but also about themselves and the world in which they live. His fiction echoes Chinua Achebe’s idea that the strong must listen to the weak. They are stronger in number only, which doesn’t make them right. Those who are outnumbered, the weak so to speak, have something to say. They have a voice that deserves to be heard. Alexie has a powerful voice, and it would do us all good to listen. Works Cited Alexie, Sherman. The Lone Ranger and Tonto Fistfight in Heaven. New York: Harper Perennial , 1994. "What it Means to be Sherman Alexie". The Official Sherman Alexie Site. Online. America Online. 8 April 1999.

Bass Reeves

Black Reeves is best known as the first African-American Deputy Marshall West of the Mississippi River. He is considered as one of the greatest frontier heroes of America. Using his talent with firearms to â€Å"clean op† the chaotic Indian Territory, he was able to turn in numerous criminals into custody. Where he was actually born is shrouded in mystery as several sources say that he is either born in Texas or Arkansas.At any rate, he eventually moved to Texas along with his master, George Reeves, a politician and farmer, with whom Bass Reeves last name, was taken (Weiser, 2009).Bass Reeves, despite his big frame, was a good man, polite in his ways, and had a good sense of humor. These characteristics allowed him to be favored by his master—he became the â€Å"buddy† and personal servant of George Reeves. During the Civil war, George Reeves joined the Confederate army and tagged along with him Bass Reeves (Weiser, 2009). A sort of Civil War within Bass and Geor ge’s relationship also happened during the war. Bass Reeves, for one reason or another left his master and sought refuge in Indian land.Rumors say that a fight broke out between George and Bass during a card game, another rumor says that the promise of being free after the war coaxed Bass Reeves into parting ways with his master. He spent a good deal of time with Seminole and Creek Indians, all the while honing his skills in shooting. He became so skilled in shooting that he was disqualified in most turkey shooting competitions (Weiser, 2009). The Emancipation Proclamation of 1863 freed all the African-American slaves. Bass Reeves purchased land in Arkansas where he put up a farm.After a year of being a successful farmer, he was married to Nellie Jennie. Bass Reeves and Nellie Jennie raised a family of five girls and five boys while enjoying life on the farm (Weiser, 2009). The chaotic Indian Territory would be the cause for Bass Reeve’s career change. The Indian Terri tory during Reeve’s time became the hideout of all sorts of outlaws. This prompted the government to commission Isaac Parker as a judge in the District Court at Fort Smith, Arkansas, the closest fort near the Indian Territory.In turn, Parker commissioned James Fagan, a US Marshall, to employ 200 deputies. Bass Reeves’ familiarity with the Indian Territory and local languages (because of his exile there) came into Fagan’s attention, resulting in the recruitment of Reeves. The deputies were hired for one purpose alone, and that is to eradicate the outlaws of the area at any cost (Weiser, 2009). Reeves soon started his duty as a US Deputy and worked alongside fellow frontier legends like Bud Ledbetter, Bill Tilghman, and Heck Thomas.The US Deputies covered about 75,000 square miles of land encompassing Oklahoma, which is within the jurisdiction of Fort Smith (Weiser, 2009). The law states that a warrant of arrest is needed in order for the arrest to be legal. An un educated person would have trouble with this because warrants are written documents, and deputies often have to carry multiple warrants with them. However, illiteracy did not stop Reeves from carrying out his duty He memorized each warrant by having it read aloud to him before they ride out.He knew which warrant to show for each criminal (Weiser, 2009). As if his 6 foot, two-inch frame was not tall enough to intimidate criminals, Reeves, fully dressed with shined boots and all, rode a big stallion to be a dominant figure. Despite his fondness of looking at his best all the time, when the task required a little bit of creativity, he used a variety of guises to apprehend criminals as efficiently as possible. He always had with him two revolvers which he used, and he was adept at using them in both hands (Weiser, 2009).Reeves pursuit of criminals would often mean that he would be out of the fort for months at a time and come back only to turn in his captured criminals and spend a short time with his family (Weiser, 2009). One capture that has immortalized Reeves is his capture of two outlaw brothers in the Red River Valley. His posse camped out a distance away from the house where the outlaws were thought to be hiding. Reeves disguised himself as a man in rags and knocked on the door of the outlaws. The outlaws’ mother opened up and allowed him to stay, all the while fooling her that he wants to join forces with her sons.The outlaws came home, and Reeves managed to convince the family to join forces. While the outlaws were on their sleep, Reeves handcuffed them without them even noticing. First thing in the morning, Reeves woke the outlaws and brought them to the camp where the rest of his posse was. The outlaws’ capture brought in an additional $5,000 dollars to Reeves’ name (Weiser, 2009). Another famous adventure that Reeves involved himself into is the encounter with Bob Dozier. Dozier was an infamous criminal and has managed to elude Ree ves for the longest time.Refusing arrest, Dozier was shot dead by Reeves (Weiser, 2009). The hardest arrest that Reeves had to do was the arrest of his own son. His son was charged by killing his own wife. Reeves volunteered to take his own son into custody. After half a month of pursuit, he turned in his son and was tried and sent to prison but was released earlier than decreed because of petition and a clean record while in prison (Weiser, 2009). After law enforcement was established in the area, deputies were no longer needed. He served as a patrolman in Oklahoma for two years. While he was in the office, crime was virtually zero.Only sickness prevented Reeves from continuing his service, as he was diagnosed with Bright’s disease. He died on the 12th of January 1910 (Weiser, 2009). Over 3,000 outlaws were apprehended by Reeves in a span of 35 years. That means more than 7 outlaws turned in every month if we do the math. With just 14 casualties in all, Bass Reeves is probab ly the most efficient official in American history (Weiser, 2009). Reference Weiser, K. (2009). Black Reeves – Black Hero Marshall. Legends of America. com. Retrieved March 19, 2009, from http://www. legendsofamerica. com/WE-BassReeves. html.

Cell Phone Use While Driving Essay - 1816 Words

The study was attempting to determine the thoughts and behaviors that African American freshman college students in regards to cellphone use while driving. They wanted to know how the students thought cellphones (independent variable) impact driving skills (dependent variable). Research suggests that cellphone use correlates to higher likelihood of accidents. The study used 331 (195 females and 136 males) freshman students who held a driver’s license. The students were then given a questionnaire with 50 questions, with 6 demographic items, that asked about 5 general items that distract drivers. The survey was given during the freshman first year experience class. The study could only use a survey response to ask students about their cellphone use and would not be ethical to have students use their cellphones and drive, in a real life experiment setting. They found evidence that supports their initial beliefs that cell phone use does lead to greater risk of danger while driving . They further explain the limits to their study, that this can only be generalized towards the African American community because of the selective (purely African American college) sample. Chellappa, S. L., Steiner, R., Oelhafen, P., Lang, D., Gà ¶tz, T., Krebs, J., Cajochen, C. (2013). Acute exposure to evening blue-enriched light impacts on human sleep. Journal Of Sleep Research, 22(5), 573-580. doi:10.1111/jsr.12050 This study was looking at blue light and its effects on sleep. Blue light is moreShow MoreRelatedUse Of Cell Phones While Driving860 Words   |  4 PagesAmericans rely heavily on cell phones to perform daily activities. Cell phone are used for phone calls, email, sending text messages, surfing the internet, and performing other tasks. It is unfortunate that many of these daily activities occur while a person is driving. As a result, an increase of accidents and fatalities have occurred because of the use of cellular phones while driving. Using a cell phone while driving is an epidemic that has taken our nation by storm. Most drivers believe theyRead MoreCell Phone Use While Driving1503 Words   |  7 Pagesforth over the lines or driving at very inconsistent speeds. You wonder what could possibly be causing the driver to drive so erratically. Is the driver drunk? Is the driver preoccupied with eating his or her lunch? Is the driver busy attending children in the backseat? Once you pull along the side you realize that was not the case, instead you notice the driver has a cellular telephone up to her or his ear chatting away, or even worse you pass and see the driver holding a phone texting, you pass byRead MoreThe Use Of Cell Phones While Driving1817 Words   |  8 Pagesknowledge that the use of cell phones while driving decreases driver awareness and overall road safety, and in response to this knowledge, some states have passed laws that have prohibited the use of handheld devices. However, there are no laws bann ing hands free cell phone usage, despite research claiming hands free devices are just as dangerous handheld devices. But, does their usage distract drivers enough to the point where states should legally ban the total use cell phones while driving? The followingRead MoreCell Phone Use While Driving990 Words   |  4 Pages Cell phones are integral to people’s lives in Canada because they are vital communication and entertainment tools. However, the use of cell phones has remained contentious, because texting and talking on the phone are associated with distracted driving. Distracted driving is, â€Å"defined as the diversion of attention away from activities critical for safe driving toward a competing activity† (Klauer, Guo, Simons-Morton, Ouimet, Lee Dingus, 2013, p. 55). Although distracted driving is also associatedRead MoreUse of Cell Phones While Driving824 Words   |  4 PagesIf you are driving at 55mph for 5 seconds in that amount of time you could cross a football field. People don’t understand how dangerous distracted driving really is. All states should have some sort of legal parameters of what happens when you get caught using your cell phone while driving. People should get a stronger/ harsher punishment for the use of a cellular device while driving. People are way more impaired when you are distracted and driving than you are drinking and driving. The problemRead MoreCell Phone Use While Driving1114 Words   |  5 PagesToday, we use our cell phones for just about anything and everything to include; texting, talking to our loved ones, and connecting with the rest of the world via social media. Cell phones have become a natural way of life to where we pick up our phones and use them like second nature. However, the dangers present themselves when we get behind the wheel of a car and carry these habits of cell phone addictions with us. If all states ban the use of cell phones while driving, then there would be a reducedRead MoreThe Use Of Cell Phones While Driving1843 Words   |  8 Pagesknown that the use of cell phones while driving decreases driver awareness and overall road safety, and in response to this knowledge, some states have passed laws that have prohibited the use of handheld devices. However, there are no laws banning hands free cell phone usage, despite research claiming hands free devices are just as dangerous handheld devices, but does their usage distract drivers enough to the point where states should legally ban the total use cell phones while driving? The followingRead MoreThe Use Of Cell Phones While Driving1509 Words   |  7 PagesSeveral states have enacted laws banning the use of cell phones while driving; an indication of the type of society America has become. These laws were put in place not only to keep drivers from taking phone calls, but also to deter them from posting their latest tweet or commenting on their friend’s latest picture. Social media is so ingrained in society today that many are unable to entertain a world that is devoid of such technology. With usage at an all-time high, the psychological effects ofRead More Cell Phones And Driving: Dangers Involved with Cell Phone Use While Driving1036 Words   |  5 Pagesoften. Talking on the cell phone and driving has become a very popular thing these days. Technology is coming out with the newest phones that can do everything for you and people are attracted to that. There are people that don’t have hands free and drive their car with only one hand, people that text and totally take their eye off the road and type conversations to each other. Bluetooth is another technological breakthrough where you wear an ear piece and can receive phone calls by one touch ofRead MoreStop the Use of Cell Phones While Driving854 Words   |  4 Pages13 2013 Many people driving don’t know that they can be so many wrongs they can be doing without realizing it. Plenty talk on the phone while driving, drink, text and drive. A lot of people even innocent people as well have had accidents involving one of those. Out of the three there has been one that has become more common, and it’s only increasing if people don’t put a stop to it themselves. A usage of a cell phone should not be displayed at any point while driving. It can wait many have had