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Latest post Mon, Aug 18 2008 9:52 PM by davidzhaos. 0 replies.
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davidzhaos  +  556289 Mon, 18 Aug 08 09:52 PM
1. If you could invent one useful thing for humankind, what would it be? Describe the invention and its impact.
 

In US today, one of the most significant issues we are facing is the automobile. Currently automobile produces the second largest amount of CO2 gas, the leading cause of environment damage and is cause oil crisis we are experiencing today. It is said that necessity is the mother of invention. Well, one of today greatest necessity is the need to replace conventional gasoline automobile and as result I would like to invent a eclectic power car that just do that. By using electricity rather than gasoline, my new electric automobile will solve both the environment problems and oil crisis cause by conventional automobile.

But first of all, what is my new electric automobile? It is a conventional design compact car that will use electricity rather than gasoline to power itself. This new car will feature four 36 by 24 inches solar cells located on the roof of the it that will allow the car to convert sunlight into electric power. It will also feature a 36 by 24 by 24 inches lead-acid battery located in the retractable hardtop of the car to store power. This new car will replace the conventional gasoline engine with an all new electric power engine that will use the electric energy store in the lead-acid battery to power the itself. During day time this car will use energy from solar cells to power itself and during night time or in other conditions such as rain where the car does not have access to sunlight, it will rely on the energy store in its lead-acid battery to power its engine. Last of all, this new vehicle will also has plug-in battery ability that will allow the car's acid-lead battery to be recharge by connecting a plug into electric power source such a electric power grid.

One of the major advantage my new electric automobile over conventional automobile is environment friendly. Although today cars allow us to travel faster and further, they also produce 1.5 billion tons of CO2 annually. CO2 is one of the major threats to our environment today. When this insidious gas is emission from the car, it can mix with cloud and create acidic rain. Acidic rain is extreme harmful as it can destroy farmlands and damage city's buildings. Worse, increase CO2gas in atmosphere can also increase the greenhouse effect, which trap heat absorb from sun. This increase in heat can lead to global warming, a serious threat to our survival. Global warming can melt ice in both North and South poles that will raise ocean level and consume our land. It can also increase in the intensity of extreme weather such as cyclone and increased pace of desertification that degrade land into desert. Overall CO2 can cause major damages to our environment that will make Earth unsuitable to human. As result by replacing conventional gasoline automobile with my electric automobile, we can stop producing this deadly every time we drive, thus protecting the environment.

Another threat that results from conventional automobile is the oil crisis we are facing today. Every time we drive our automobile we use gasoline. Not only does this cause co2 emission that damages the environment, but it also cost us a large amount of money. In US, the average person buys 16 barrels of oil each year, that is $1400 a year! Think of the all the things we can buy and all the money we can save if we didn’t waste all that money on oil. Even worse US didn't make all the oil it need, as result US has to import 60% of oil. Our current major supply of oil is from Middle East. This is very damage since this makes us depend on foreign oil. If anytime Middle East stop the flow the oil to us, it would seriously damage our economy such what happen in 1973 oil crisis. By switching to my new eclectic, not only will we save money by stopping buying expensive gasoline, it will also stop US’s dependence on foreign oil.

Although nothing is perfect, though progress we make thing closer and closer to perfect. Today gasoline automobile have many faults including the environment damage and dependence on oil it cause, thought progress I can invent a new electric car that solve these problems and a more step toward perfect.

Joined on Sat, Aug 16 2008
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