Pollution Problem Affecting Hong Kong Essay Example for Free

Pollution Problem Affecting Hong Kong Essay Recently, a survey was conducted concerning about the development of Hong Kong and the related air pollution issues over the last twenty years. The survey investigated the Air Pollution Index (API) of different districts in Hong Kong, including Central, Mong Kok, Kowloon City, Tung Chung and Yuen Long. According to the result, API has been growing in Central, Tung Chung and Yuen Long from 1992 to 2012. Meanwhile, the Air Pollution Index of Kowloon City and Mong Kok have been increasing within these ten years. It demonstrates that air pollution becomes serious because of the rapid development of society. Air pollution is an inevitable consequence of economic development in Hong Kong. Since there are many vehicles and factories in prosperous areas in Hong Kong, exhaust gas are created and air pollution will deteriorate. For instance, due to the construction of Hong Kong International Airport in Tung Chung in 1998, numerous airplanes taken off and landed leads to the increasingly serious pollution problems. Therefore, API has increased from 32 to 174 over these 20 years according to the data. Besides, some factories and manufacturers may be keen on the pursuit of profits but concerning less about the protection of environment. As a result, air pollution problem in Hong Kong become more severe in these ten years. The government should pay more attention to promote environmental protection. One of the feasible solutions of improving the air pollution problem is to promote environmental protection regularly. It is important for the citizens to build up their awareness of protecting environment. People need to know more about the consequences of poor air quality which may harm their health. The government may take some methods to handle the problem arising. For example, advertising through televisions, holding talks and educating the next generations. Therefore, manufacturers may take their social responsibility to reduce the damage on environment. Air pollution problem can be improved when people are concerning more about the situation. There are some possible benefits and challenges for implementing the solution. First, if the government and citizens can join hands in solving the problem, it is possible that promotion of environmental protection can meet our objectives. However, it may be difficult that the air pollution problem can be improved immediately. In long-run, laws and limitations should be introduced to improve air quality, such as introducing stricter pollution controls for factories, introducing higher registration fee of private cars and limiting the private cars on the road. As a consequence, the air quality of different areas in Hong Kong can be improved through these effective measures. In conclusion, according to the survey, the air pollution problem is increasingly serious in different prosperous districts in Hong Kong due to the economic development. There are lots of feasible and effective strategies of improving air quality. If the government and people collaborate in solving the problem, it is not far to breathe in fresh air in Hong Kong.

Examine the role of Alfieri in A view from the bridge. Comment on :: English Literature

Examine the role of Alfieri in A view from the bridge. Comment on his dramatic function in the play and his role as both character and commentator. This essay will explore the different roles that Alfieri takes on in 'A view from the bridge. I will comment on how he uses his role as both commentator and character to create dramatic tension in the play. A view from the bridge is a play set in the late 1940s and is based in the rural streets of Brooklyn harbour, New York. Eddie Carbone is an Italian longshoreman working on the New York docks and lives with his wife Beatrice and her niece Catherine. Eddie's wife accepts to refuge her cousins from Sicily as illegal immigrants until they could get their paperwork sorted. Catherine becomes attracted to one of the brothers and that's when the troubles start. Eddies becomes rapt in jealousy and wants to get rid of the two brothers in any possible way. Alfieri is a lawyer and is Eddie's friend as well. He tries to convince Eddie not to do something which he will regret later on and which will affect his life in the society. Eddie decides not to listen to Alfieri and goes on top break the Italian code. Alfieri is a lawyer who also lives in the same area as Eddie Carbone. In the play he takes on the role of a character as well as taking on the role of a narrator. One role he takes on in the play is the voice of the law. He brings this up in a conversation with Eddie where he says, "Eddie, I'm a lawyer†¦Can you prove that?" This clearly shows that Alfieri uses his knowledge to bring in the voice of the law into Eddie's situation. Due to him being a lawyer, he knows that if Eddie wants to take legal actions against Rodolfo, then he will need to get proof for the law to believe him. Due to him being a lawyer, he has got all the legal knowledge needed to deal with every day uses. As well as being the voice of the law, Alfieri is also an advisor to Eddie. He warns Eddie that he "won't have a friend in the world" if he carries on the way he is going. This shows that Alfieri knows that a tragedy is inevitable if Eddie doesn't stop. Therefore he uses his role as an advisor to advise Eddie to stop himself. In advising Eddie in doing so, Alfieri is trying to stop Eddie from doing what he knows

Physics Ib Chapter 4 Notes

CSimple Harmonic Motion and Waves Kinematics of simple harmonic motion: Oscillation: an effect expressible as a quantity that repeatedly and regularly fluctuates above and below a average value, as the pressure of an alternating current. Examples include: †¢ Cycle: One cycle is defined as one complete oscillation of the pendulum (A-B-A) †¢ Equilibrium Position: the position where the pendulum would be at rest when undisturbed (O) †¢ Amplitude (x0): maximum displacement from equilibrium position (OB or OA) – measured in metres. Time Period (T): the length of time to complete one cycle – measured in seconds †¢ Frequency (f): the number of cycles the pendulum makes per unit time – measured in 1/s or hertz (Hz) †¢ Angular frequency (? or 2? f): used when describing circular motion, or even an oscillation in the case of 2? equivalent to one cycle. Displacement: the distance of an oscillating body from its central position or point of equilibri um at any given moment. Amplitude: the absolute value of the maximum displacement from a zero value during one period of an oscillation.Frequency: the number of periods or regularly occurring events of any given kind in unit of time. This is usually measured in one second. Period: the time taken to complete one cycle of a regularly recurring phenomenon Phase Difference: Simple Harmonic Motion: vibratory motion in a system in which the restoring force is proportional to the displacement from equilibrium. This is expressed by the equation: a = -? ^2x Energy changes during simple harmonic motion (SHM): Kinetic energy = mv^2 /2 and the potential energy at any point = total energy – KE.Because no energy is lost when the total energy is a constant value, the energy when a body is active sees continual changes between kinetic and potential energy. Forced oscillations and resonance: Damping: The effect in which there is a loss of energy due to the friction in real oscillation. Exampl es of damping include: †¢ Light damping, critical damping, etc. Natural frequency of vibration Wave Characteristics: Damping: The effect in which there is a loss of energy due to the friction in real oscillation. Examples of damping include: †¢ Light damping, critical damping, etc.Natural frequency of vibration Wave Properties: Snell's Law relates the angle of incidence to the angle of refraction to the ratio of the velocity of the wave in the different media, which is always equal. It is stated by: sin i = v1 __________________________________________________________________________ sin r = v2 Diffraction takes place when a wave passes through a small opening. If the op Doppler Effect: The Doppler effect is where there is An change in the frequency of sound, light, or other waves as there is a change in the distance between the source and observer.The effect causes the sudden change in pitch noticeable in a passing siren, as well as the redshift seen by astronomers. Elect rical Currents Electrical potential difference, current and resistence: Electrical potential difference (Voltage) is the electric potential difference between two points — or the difference in electric potential unit of a unit test charge transported between two points. The electron volt is a unit of energy equal to approximately 1. 6? 10? 19 joule (J). It is the amount of energy gained by the charge of a single electron moved across an electric potential difference of one volt.Thus it is 1 volt (1 joule per coulomb, 1 J/C) multiplied by the electron charge (1e, or 1. 602176565(35)? 10? 19 C). Electric current is the flow of charge (i. e. the + of batteries is charged as it has higher PE and the current flows to -. The unit of current is the amp (A), a scalar quantity. Resistence is the rate at which charge current flow through a conducter is not much allowed. This normally depends on the conducters size and material. It is measured in ohm (? ). It is related to the cross sec tional area (A), length (L) and the material and the constant of proportionality is called the resistivity (p).Hence R = pL/A Ohm's law states that electric current is proportional to voltage and inversely proportional to resistance in terms of flowing across and through it. If the potential difference across a conductor is V and the current flowing through it is I, then according to Ohm's law: V=IR. Ohmic conductor behaviour is demonstrated when graphing I against V of being a straight line Non-ohmic conductor behaviour is demonstrated when graphing I against V of not being a straight line. i. e. ight bulb filaments Electric circuits: Electromotive force (emf) refers to voltage output generated by a battery or by the magnetic force which states that a time varying magnetic field will induce an electric current. Internal resistence is the resistence of that of all cells that are made from materials that have resistance. If such a cell was connected to a resistor, there is less energ y to be converted to heat in the resistor and the potential difference across it less then the cell's emf. With Oh

History And Culture Of The Hispanic World Essay - 1324 Words

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Costa Rica never really rebelled against the Spaniards, but followed the lead of Guatemala. b. Colonial System In 1564, Juan Vasquez de Coronado founded the first permanent European settlement, Cartgao (been there!). (Morrison). Cartago is a city based mostly out of agriculture. Farming is a huge part of Cartago, and Costa Rica’s success. Driving through the streets of Cartago is like finding hundreds of carts and shops with various produce, fruits, and vegetables. Costa Rica is known as the Switzerland of Central America. (Shields). While theShow MoreRelatedChristian Spanish Theology Essay examples1236 Words   |  5 PagesTheology 10.28.2011 Manana: Christian Theology From A Hispanic Perspective Manana: Christian Theology From A Hispanic Perspective examines the basic ideas and concepts of Christian theology through the lens of the Hispanic culture. 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