April 23, 2007
extended definition of happiness
Happiness is a kind of emotional feeling of pleasure or satisfaction. Different people may have different ideas with regard to the ways of achieving happiness, such as wealth, educational achievements and fame. However, some people achieve happiness from simple everyday pleasure. Being a happiness person has some advantages. For instance, happiness person is healthier than sadness person. Moreover, if a person who is a happiness guy, she or he can bring other people a good mood.
April 22, 2007
Recycling garbage is good or not
Nowadays, many people concern about the garbage we threw can bring serious pollution. Finding a method to deal with the garbage is very important. Recycling seems to be one of the best solutions, however, there exist many argues about recycling garbage.
Recycling garbage can help factory saves energy. The EIA (Energy Information Administration) states that “a paper mill uses 40 percent less energy to make paper from recycled paper than it does to make paper from fresh lumber.” Critics often argue that in the overall processes, it can take more energy to produce recycled products than it does to dispose of them in traditional landfill methods.
It is difficult to determine the exact amount of energy consumed in waste disposal processes. How much energy is used in recycling depends largely on the type of material being recycled and the process used to do so. Aluminum is generally agreed to use far less energy when recycled rather than being produced from scratch. The EPA states that “recycling aluminum cans, for example, save 95 percent of the energy required to make the same amount of aluminum from its virgin source.”
Recycling garbage can help government save more money. The amount of money actually saved through recycling is proportional to the efficiency of the recycling program used to do it. The institute for local self-reliance argues that the cost of recycling depends on various factors around a community that recycles, such as landfill fees and the amount of disposal that the community recycles. It states that communities start to save money when they treat recycling as a replacement for their traditional waste system rather than an add-on to it and by "redesigning their collection schedules or trucks."
In many cases the cost of recyclable materials also exceeds the cost of raw materials. Virgin plastic resin costs 40% less than recycled resin. Additionally, an EPA study that tracked the price of clear cullet from July 15 to August 2, 1991, found that the average cost per ton ranged from $40 to $60, while a report shows that the cost per ton of raw silica sand from years 1993 to 1997 fell between $17.33 and $18.10.
Recycling garbage can save trees. In a 1990 recycling awareness pamphlet the EPA stated, "Every ton of paper recovered for recycling saves 17 trees from being cut down to make new paper." However, Economist Steven Landsburg has claimed that paper recycling actually reduces tree populations. He argues that because paper companies have incentives to replenish the forests they own, large demands for paper lead to large forests. Conversely, reduced demand for paper leads to fewer "farmed" forests.
Recycling garbage can help factory saves energy. The EIA (Energy Information Administration) states that “a paper mill uses 40 percent less energy to make paper from recycled paper than it does to make paper from fresh lumber.” Critics often argue that in the overall processes, it can take more energy to produce recycled products than it does to dispose of them in traditional landfill methods.
It is difficult to determine the exact amount of energy consumed in waste disposal processes. How much energy is used in recycling depends largely on the type of material being recycled and the process used to do so. Aluminum is generally agreed to use far less energy when recycled rather than being produced from scratch. The EPA states that “recycling aluminum cans, for example, save 95 percent of the energy required to make the same amount of aluminum from its virgin source.”
Recycling garbage can help government save more money. The amount of money actually saved through recycling is proportional to the efficiency of the recycling program used to do it. The institute for local self-reliance argues that the cost of recycling depends on various factors around a community that recycles, such as landfill fees and the amount of disposal that the community recycles. It states that communities start to save money when they treat recycling as a replacement for their traditional waste system rather than an add-on to it and by "redesigning their collection schedules or trucks."
In many cases the cost of recyclable materials also exceeds the cost of raw materials. Virgin plastic resin costs 40% less than recycled resin. Additionally, an EPA study that tracked the price of clear cullet from July 15 to August 2, 1991, found that the average cost per ton ranged from $40 to $60, while a report shows that the cost per ton of raw silica sand from years 1993 to 1997 fell between $17.33 and $18.10.
Recycling garbage can save trees. In a 1990 recycling awareness pamphlet the EPA stated, "Every ton of paper recovered for recycling saves 17 trees from being cut down to make new paper." However, Economist Steven Landsburg has claimed that paper recycling actually reduces tree populations. He argues that because paper companies have incentives to replenish the forests they own, large demands for paper lead to large forests. Conversely, reduced demand for paper leads to fewer "farmed" forests.
April 13, 2007
April 12, 2007
How safe is your child's school bus?
Yesterday, a school bus crashed with a truck in Brampton, Ontario. This accident caused 2 children wounding, one of them got serious injuring. In some cities, children were killed by the school bus accidents few months ago. Many parents start to wonder about the safety of school buses, and most of them want school buses to have seat belts.
Transportation experts believe school buses are actually safer than other forms of school transport, including the family car. School buses are better designed since 1977. It is safer and more comfortable than before. Some school buses even have Global Positioning Systems and computerized controls now. An average of 815 die using all forms of school transport, about 31% per year die while boarding or getting off the bus, so the newest buses designed focus on helping drivers see students outside the bus.
Many people suggest that putting seat belts in school buses can make them safer. Few states already have buses come with seat belts, more and more states consider using seat belts. However, if seat belts are put in school buses, the capacity of the bus will reduce 17%.
Transportation surveys show that the percentage of public school students riding school buses is decreasing. There are a number of reasons. First of all, many busy parents want to spend more time with their children, so they choose driving their children to school. Secondly, some parents not reassure about leaving their children in someone else’s care. Thirdly, many parents recall their own experiences riding school buses in the past and worry their children will have similar experiences.
In my opinion, I believe that school buses are designed better than before. There are many new technologies on the buses that can help drivers see children clearly when children are boarding or getting off. In additional, if the accident happens, seat belts can decrease the dangerous of children. Furthermore, school bus drivers have to take responsibility for children. They should drive more carefully. For example, when they see the yellow light, they should stop the bus instead of running through yellow light. If the buses are better designed and drivers are drive carefully, more and more parents may be pleasure to let their children ride school buses.
Transportation experts believe school buses are actually safer than other forms of school transport, including the family car. School buses are better designed since 1977. It is safer and more comfortable than before. Some school buses even have Global Positioning Systems and computerized controls now. An average of 815 die using all forms of school transport, about 31% per year die while boarding or getting off the bus, so the newest buses designed focus on helping drivers see students outside the bus.
Many people suggest that putting seat belts in school buses can make them safer. Few states already have buses come with seat belts, more and more states consider using seat belts. However, if seat belts are put in school buses, the capacity of the bus will reduce 17%.
Transportation surveys show that the percentage of public school students riding school buses is decreasing. There are a number of reasons. First of all, many busy parents want to spend more time with their children, so they choose driving their children to school. Secondly, some parents not reassure about leaving their children in someone else’s care. Thirdly, many parents recall their own experiences riding school buses in the past and worry their children will have similar experiences.
In my opinion, I believe that school buses are designed better than before. There are many new technologies on the buses that can help drivers see children clearly when children are boarding or getting off. In additional, if the accident happens, seat belts can decrease the dangerous of children. Furthermore, school bus drivers have to take responsibility for children. They should drive more carefully. For example, when they see the yellow light, they should stop the bus instead of running through yellow light. If the buses are better designed and drivers are drive carefully, more and more parents may be pleasure to let their children ride school buses.
April 8, 2007
Building super skyscrapers is a good idea
Nowadays, more and more people start to argue whether building skyscrapers is a good idea. Many opponents wonder whether super high skyscrapers are safe enough. They also wonder the economic problem about super skyscrapers. However, in my opinion, I believe that building super high skyscrapers is a good idea for the city where have fast growing population.
The fast growing population is a very serious problem in all over the world, especially in some cities. Today, the world population is more than sixty billion. Only in china, the population is thirteen billion. According to predict, in the year 2050, the world population will achieve eighty billion; fifteen billion people will live in China. The increase of population causes the fact that each person has limited space. Also the land for farming is decrease. As a result, building super high skyscrapers is the only solution for this problem. If we have the super high skyscrapers, we can put different service facilities inside the buildings, which can save a lot of space on the land. Moreover these service facilities in the building can bring people convenience.
New construction technologies make the dream of building super high skyscrapers becoming true. Since the new material (steel) is used to build buildings, constructing skyscrapers become possible. The first skyscraper was called Home Insurance Building, which was built in Chicago in 1885. After that, more and more skyscrapers have been built in all over the world. Nowadays, in order to make sure the super high skyscrapers are safe enough, designers and engineers take many factors into account, such as earthquakes, wind speed, foundations and so on. They do some experiments to find out the way to solve problems. After the super high skyscrapers completed, we can say that they are safe enough.
Building super high skyscrapers is not only the way to solve the fast growing problem, but also becomes the symbols in cities. Today the highest super high skyscraper is Taipei 101. It is 1671 feet high and located in Taipei. This skyscraper becomes a symbol in the city. Today, other cities like Tokyo, Dubai already starts to plan to build a higher one in the future.
Building super high skyscrapers is the only solution for fast growing population in the world. The successful new technologies make the dream becomes possible. More and more skyscrapers will build in the future. They will become the symbols in the cities, even in the world!
The fast growing population is a very serious problem in all over the world, especially in some cities. Today, the world population is more than sixty billion. Only in china, the population is thirteen billion. According to predict, in the year 2050, the world population will achieve eighty billion; fifteen billion people will live in China. The increase of population causes the fact that each person has limited space. Also the land for farming is decrease. As a result, building super high skyscrapers is the only solution for this problem. If we have the super high skyscrapers, we can put different service facilities inside the buildings, which can save a lot of space on the land. Moreover these service facilities in the building can bring people convenience.
New construction technologies make the dream of building super high skyscrapers becoming true. Since the new material (steel) is used to build buildings, constructing skyscrapers become possible. The first skyscraper was called Home Insurance Building, which was built in Chicago in 1885. After that, more and more skyscrapers have been built in all over the world. Nowadays, in order to make sure the super high skyscrapers are safe enough, designers and engineers take many factors into account, such as earthquakes, wind speed, foundations and so on. They do some experiments to find out the way to solve problems. After the super high skyscrapers completed, we can say that they are safe enough.
Building super high skyscrapers is not only the way to solve the fast growing problem, but also becomes the symbols in cities. Today the highest super high skyscraper is Taipei 101. It is 1671 feet high and located in Taipei. This skyscraper becomes a symbol in the city. Today, other cities like Tokyo, Dubai already starts to plan to build a higher one in the future.
Building super high skyscrapers is the only solution for fast growing population in the world. The successful new technologies make the dream becomes possible. More and more skyscrapers will build in the future. They will become the symbols in the cities, even in the world!
April 7, 2007
Sears Tower
Sears Tower is strategically located on Wacker Drive in the heart of the West Loop, Chicago’s premier submarket and home to its largest corporations and commuter rail stations. Completed in early 1973, Sears Tower is an attractive and contemporary 110-story trophy office tower consisting of steel columns and beams in a “mega-module” system. The building contains approximately 3.8 million rentable square feet (“RSF”) including approximately 159,000 RSF of retail space. The Property also features a 160-car underground parking garage accessible from Franklin Street. Other amenities include a world-class broadcast platform, tallest skydeck, full-service conference center, fitness facility, and exceptional technology features.The Sears Tower, completed May 3, 1973, rises to a height of 1,450 feet and is one of the most recognizable landmarks in the Chicago skyline and in the world. The Sears tower held the record for the world’s tallest building for 25 years until the Petronas Towers in Kuala Lampur, Malaysia were built in 1998. Then in the Fall of 2004 Taipei 101 took all but one title -- tallest to the tips of the antennas, which the Sears Tower still owns. Including the Sears Tower antennas, the total height of the Sears Tower increases to 1,725 feet. Designed by the architectural firm Skidmore, Owings & Merrill for Sears, Roebuck & Company, the world’s largest retailer at the time, the 3.8 million RSF building is the preeminent office address in Chicago and one of the premier properties in the world. The property provides an irreplaceable West Loop location, unparalleled views from all of the property’s highly efficient floors and an unmatched prestige.
April 6, 2007
SKYSCRAPER
The United States has many of the world's most famous skyscrapers. After emerging in New York and Chicago in the 1870's and 1880's, skyscrapers were being built in cities all across the country by the early 1900's. Though they were initially greeted with a great deal of skepticism and even protest, by the 1920's they were essential elements to the identity and civic pride of the nation's growing cities. After WWII, skylines were transformed with successive waves of new buildings, culminating in a major boom in the 1980's. The pace has slowed in recent years, however, and today more skyscrapers are being constructed in Asia than America, including the world's tallestApril 4, 2007
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