Bottled Water
According to the Aquafina official site www.aquafina.com, they use the patented state of the art hyDRO-7 system to purify there water to give us the pure and perfect taste in their bottled water. According to their site what the hyDRO-7 system does is remove anything that make the water taste bad. Personally I think this whole notion of bottled water is ridiculous. To pay so much for a barely detectable taste and brand name for the same water we are provided with at home is a moral travesty. Buying what I call re bottled water from corporations is all we are doing. Its just short of selling ice to a Eskimo, we are like the Eskimo who can't see that he is surrounded by the very ice we just bought. Maybe its just a general mistrust of the corporations, who's only goals are to make more profit than what they spend or maybe its a valid argument to be concerned with. One thing I will say is that bottled water is convenient.
Monday, May 17, 2010
Homework Options 1&2
1. Hydrogen is a chemical element that is the lightest and most abundant element. It is used to power the rockets we send into space. So why do we not harness its power and use it in cars instead of gasoline? The problem as I recognize it is in the storage capacity, because in the gas pressure it is typically stored at it uses four times the space of gasoline even though it is three times lighter. Another problem is pure hydrogen doesn't occur naturally and must be produced mostly by reforming methane gas (CH4). Hydrogen can be spilt from water, but the process is to impractical for conventional use since hydrogen splits from oxygen at a temperature of 2500 C. I don't think hydrogen is a future energy solution because, it is not a energy source like coal or fossil fuels, it is only an energy carrier so we must put energy into it before we can get energy out of it. The only way that hydrogen can become an accurate energy solution is if we can produce it, and get much more energy back that it costs us to produce it such as using solar thermal energy to produce it.
2. Ethanol could easily be used as a fuel source for cars, countries such as Brazil already have laws for there fuels to have at least a 25% mixture of ethanol and 75% gasoline. Also having car that run on pure ethanol. Ethanol as a fuel would be great but effect on other parts of the economy might be seen, such as higher food prices and more land needed to devote to growing agriculture that can be refined in to ethanol like corn. Since corn or some refined variation of it is found in many of the foods that we consume, it may be unrealistic of us to decide to fuel our technologies with our food source. We could literally drive ourselves to starvation if ethanol is a major and widely used fuel source.
1. Hydrogen is a chemical element that is the lightest and most abundant element. It is used to power the rockets we send into space. So why do we not harness its power and use it in cars instead of gasoline? The problem as I recognize it is in the storage capacity, because in the gas pressure it is typically stored at it uses four times the space of gasoline even though it is three times lighter. Another problem is pure hydrogen doesn't occur naturally and must be produced mostly by reforming methane gas (CH4). Hydrogen can be spilt from water, but the process is to impractical for conventional use since hydrogen splits from oxygen at a temperature of 2500 C. I don't think hydrogen is a future energy solution because, it is not a energy source like coal or fossil fuels, it is only an energy carrier so we must put energy into it before we can get energy out of it. The only way that hydrogen can become an accurate energy solution is if we can produce it, and get much more energy back that it costs us to produce it such as using solar thermal energy to produce it.
2. Ethanol could easily be used as a fuel source for cars, countries such as Brazil already have laws for there fuels to have at least a 25% mixture of ethanol and 75% gasoline. Also having car that run on pure ethanol. Ethanol as a fuel would be great but effect on other parts of the economy might be seen, such as higher food prices and more land needed to devote to growing agriculture that can be refined in to ethanol like corn. Since corn or some refined variation of it is found in many of the foods that we consume, it may be unrealistic of us to decide to fuel our technologies with our food source. We could literally drive ourselves to starvation if ethanol is a major and widely used fuel source.
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