Wednesday, January 26, 2011

Two pet compounds

  The two "pet" compounds that I pick for further research are stainless steel and PVC.
  Stainless steel got its name becausee it is not easy to leave any stains on it.It was first discovered by Harry Brearley in 1912, when he was seeking for an alloy that was sorrosion resistant for gun barrels. The key element in the stainless steel is the chromium. When there is more than 12% of the chromium in the steel, the chemical reaction will form a passivation layer covering the metal that protects it from air, water or any other acid and alkali. There are other elements that changes the hardness and ductibility of the steel, so that it could meet the demands for different applications. It can be used in various ways, such as building construction, trasportations, knives and cookers.
  When I was doing the research, I found a vedio clip that uses stainless steel drum to play. It's very cool!


  PVC is short for Polyvinyl Chloride. It was accidentally discovered twice in 1835 by Henri Victor Regnault and in 1972 by Eugen Baumann. The two substances discovered were exposed under sunlight and turned into white solids. Its Resin identification code is 3. It has a large usage amount in the world. Its physical property is stable, heat resisting, not easily corroded by acid and alkali. It can be used for the product of clothes, upholstery, tubes etc. There are some toxic additives in PVC, so it can't be used for food containers. When burning the PVC, it will produce dioxin that is polluting to the air.

Tuesday, January 18, 2011

  I'm not very familiar with all these federally funded programs in America, so I only searched a few on the internet. It might not be that comprehensive or accurate.
  I don't think any of the federally funded program should be eliminated. It's just the problem of whether the government has put the appropriate amount of resources to that sector or not. 
  One of the organizations that should be reduced is FBI. It deals with the issues of homeland security and safety. There is some overlapping areas that CIA also deals with. Even though these two agencies belong to different departments, they both need high intelligence, high technology and covering work. The cost on their agents' training and equipments should be rather high. I'm thinking maybe they could share some of the resources. They two have separate jobs and focus on different issues, so two are important. If they can really share resources, one could cut some of its funding or resources. 
  The other program that I think should be enhanced would be the U.S. Equal Employment Opportunity Commission (EEOC). They work to eliminate the discrimination such as race, sex and age on job application. As far as I know, there are still a lot of people not being treated equally. Women are not getting the same pay as men do, even though their workload is the same or even harder. Under such economic environment, the number of job applicants exceed the need of the market. Employers get more choices and they would prefer those younger people who can be more efficient on working. The discrimination can occur everywhere from job application process to the working environment. Therefore, I think this program should be maintained and enhanced.