Fuel Gauges :: essays research papers

the is cut and pasted off howstuffworks.com to get an account If you're like me, you like to squeeze every last mile you can out of your tank of fuel. If you could get 20 miles extra from each tank, that could save you two or three trips to the gas station over the course of a year. The main impediment to stretching your mileage is the fuel gauge on your car, which makes you think you have less fuel than you actually do. These devices are notoriously inaccurate, showing empty when there are gallons left in the tank and showing full for the first 50 miles. In this edition of HowStuffWorks, we'll learn why our fuel gauges behave the way they do. There are two main parts to a fuel gauge: the sender, which measures the level of fuel in the tank, and the gauge, which displays that level to the driver. First, let's see how a typical sender works. The sending unit is located in the fuel tank of the car. It consists of a float, usually made of foam, connected to a thin, metal rod. The end of the rod is mounted to a variable resistor. A resistor is an electrical device that resists the flow of electricity. The more resistance there is, the less current will flow. In a fuel tank, the variable resistor consists of a strip of resistive material connected on one side to the ground. A wiper connected to the gauge slides along this strip of material, conducting the current from the gauge to the resistor. If the wiper is close to the grounded side of the strip, there is less resistive material in the path of the current, so the resistance is small. If the wiper is at the other end of the strip, there is more resistive material in the current's path, so the resistance is large. In the sending unit, the fuel has to drop below a certain level before the float starts to drop. When the float is near the top of the tank, the wiper on the variable resistor rests close to the grounded (negative) side, which means that the resistance is small and a relatively large amount of current passes through the sending unit back to the fuel gauge. As the level in the tank drops, the float sinks, the wiper moves, the resistance increases and the amount of current sent back to the gauge decreases.

Race or color Essay

â€Å"To live anywhere in the world today and be against equality because of race or color is like living in Alaska and being against snow†. This famous observation of William Faulkner sums up the present attitude of the people towards discrimination based on color. It is hard to believe that a few decades earlier, unimaginable atrocities have been meted out against a particular section of the society just because their skin color was considered inferior. The real life story, â€Å"Warriors don’t cry† written by Melba Patillo Beals highlights the invincible hurdles faced by a group of ten black students just to acquire a basic education on par with the other students. The events narrated in the book from chapter 12 to chapter 20 leaves one stoned about the heartless abuse that these children had to undergo. A separate army consisting of 1200 soldiers is employed to ensure the safety of these ten children on the first day of their school. Despite this arrangement, there is violence and a threat to the children’s lives, thanks to the fanatic hatred of the segregationists towards the black people. Braving all odds, Melba and her friends continue their education in the school, but every day they are tormented with abuses and unfair treatments even by the school authorities. These chapters give heart-wrenching details of the physical and mental violence against Melba and her friends. Even though a few white girls were sympathetic to Melba’s situation, they could not help her because of threats from the segregationists. It is difficult to believe that even the school authorities did not help their cause. They discriminated against her by excluding her from all festivities and events. Even on her birthday, when Melba defended herself from violence, she was suspended for attacking the whites. After reading the horrible and terrifying accounts of Melba, one cannot avoid admiring the grit and perseverance with which she and her friends pursued their education. After reading these chapters, I felt relieved and thankful for the fact that such discrimination is not existent today. The first African-American president of The United States, Mr. Obama is a proof of this advancement.

Essay The War on Drugs - 1347 Words

WAR ON DRUGS Abstract Because of the war on drugs, prison overcrowding is vastly becoming a problem of astronomical proportion, putting a strain not only on the system of law enforcement, but on citizens as well. With studies in DNA and other forensic sciences that can pin point with exact precision the perpetrator of a crime; more and more criminal offenders are being caught, tried, and imprisoned for the crimes they have committed. Many of these crimes are initiated by the use of drugs, such as marijuana, cocaine, heroin, ice, crystal meth, angel dust, PCP, etc. Along with the success of catching these offenders and sentencing them to pay retribution for their crimes, another problem has surfaced—prison overcrowding. Because of†¦show more content†¦The tracking system can be used from a computer, phone, e-mail or pager. This makes it user friendly. If the criminal decides not to maintain contact through the above devices, then the proper authorities are notified. Because of the need not to buy expensive equipment and the ease with which it can be used this makes this tracking system a viable alternative to incarceration. But these are just the electronic ways to alternative sentencing, other options are still available. Community Service Most community service programs are implemented to first-time offenders. This would show the offender that he or she is accountable for their actions and that illegal activity brings about significantly adverse consequences, with major intervention at the first sign of illegal behavior. Connection in a persons mind between the act and the consequences must be realized. nbsp;nbsp;nbsp;nbsp;nbsp;Several tasks that could be accomplished through community service are: picking up trash along the roadside and in parks, cleaning publicly owned vehicles, painting little league football bleachers, and the maintaining and cleaning of animal shelters. Other programs may include unskilled work for private nonprofit organizations such as churches, goodwill industries, social service agencies, libraries, and schools. These programs would be well organized, effective, and highly monitored. The first-time offenders would learn new skills and enhance their self-esteem whileShow MoreRelatedThe Drug War On Drugs1378 Words   |  6 Pagesnon-violent drug charges. These people’s lives are now forever changed because of a mistake they made. This mistake is continually made every single day and Americans are being punished in extreme ways for a non violent crime. The United States needs to decimalize all drugs because the drug war is costly, causes high incarcera tion rates, and isn’t effective as European drug solutions. In the 20th century, the United States government led a major renewed surge in drug prohibition called the War on DrugsRead MoreThe War On Drugs And Drugs Essay972 Words   |  4 PagesThe war on drugs have been a critical issue that has repeatedly held a great debate topic. It was in the 1906 when the first act against drug was put into effect with the Pure Food and Drug Act which required all over-the-counter medication to have label of its ingredients. Under President Nixon the first executive branch office to coordinate drug policy was formed and the Comprehensive Drug Abuse Prevention and Control Act was put into place. Two years following that the Drug Enforcement AgencyRead MoreThe War On Drugs And Drugs1486 Words   |  6 PagesThe War on Drugs Despite an estimated $1 trillion spent by the United States on the â€Å"War on Drugs†, statistics from the US Department of Justice (2010) has confirmed that the usage of drugs has not changed over the past 10 years. Approximately $350 billion is spent per year on the â€Å"war on drugs†, only $7 billion is spent on prevention programs by the federal government. The war on drugs is more heavily focused on how to control crime, instead of how to prevent it. Not only is the war on drugs costlyRead MoreThe War On Drugs And Drugs Essay1549 Words   |  7 PagesIntroduction Drug has been a serious issue in our society and criminal justice institutes due to many problems associated, including the violence, negative health benefits, social disorganization, and other negative consequences. The police agencies have adopted a policy called â€Å"The War on Drugs†, as a response to the rising drug problems. The War on Drugs has popularized variety policies and practices that significantly increased the overall number of drug arrests, and other drug related offenses(TheRead MoreThe War On Drugs And Drugs1199 Words   |  5 PagesThere was so much information on this topic of the War on Drugs that I am still wrapping my mind around it. It went into such detail about the war on drugs that are never talked about. We always hear â€Å"just say no.† I know that drugs are a very big problem in our society and even the whole world but I never knew to what extent it really was. I found it very interesting how Johann Hari interviewed these people who were in the middle of the drug war and their stories. It really opened my eyes to whatRead MoreThe War On Drugs And Drugs808 Words   |  4 PagesWhose interests are advanced by sustaining the war on drugs? Police seems to gain a lot by sustaining the â€Å"war on drug†. Drugs are a significant force in police deviance, with as many as half of all convictions in police corruption cases involving drug-related crimes. Corruption in law enforcement, courts, and corrections can be explained through egoism selfish desires for personal gain. In other cases, however, corruption might be better understood as stemming from socially hedonistic incentives;Read MoreThe War On Drugs And Drugs1821 Words   |  8 PagesThe war on drugs is a long going battle and it has created many issues all around the world and as of today the highest prison population can be found in the United States due to drug charges. About half of the inmates with in federal and state prisons can be found on drug convictions. Those charges can range from possession of an illicit substance to drug trafficking that surprisingly continues to be an issue in federal and state prisons. How can United States put an end to t he war on drugs? Read MoreThe War On Drugs And Drugs2027 Words   |  9 Pagesincreased federal spending in an attempt to curb the number of drug users and the sale and importation of illicit narcotics the war on drugs began in earnest. The war on drugs has also played a major role in politics as well as having a significant impact on the economy. While there are many arguments in favor for the war on drugs and an equal number of arguments against it I will attempt to show an unbiased look at the war on drugs and drug prohibition and how it has affected society as a whole. SinceRead MoreWar On Drugs And Drugs1952 Words   |  8 PagesWar on Drugs The war on drugs has come a long way without any remarkable success. America has been dealing with the drug menace for many years to a point that four of its presidents have declared the war on drugs part of their main agenda. Sadly, it has been a lost war in various perspectives. Drug abuse continues to be a daily topic with drug abusers flooding not only the American society but also many countries’ hospitals, prisons and courts. The drug trade has continued to cause violent crimesRead MoreThe Drug War On Drugs Essay2030 Words   |  9 Pagesthe â€Å"War on Drugs† sought to control the sale and use of psychoactive drugs as well as promote access to treatment for those who abuse and misuse these substances (Bagley, 1988; Elkins, 1990). Policies implemented prohibited the possession and distribution of narcotics (e.g. marijuana, cocaine, heroin); the punitive policies, which often resulted in hefty fines and prison sentences for violators, ultimately prompted the emer gence of a black market, more potent and lethal drugs, synthetic drugs as well