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Archive for July, 2007

Websites about Auto Repair

July 26, 2007 Leave a comment

YouTube’s Category of Automobiles has videos about the techniques of car’s repair.

ExpertVillage and eHow also have many videos about car’s repair and maintenance. The Auto’s category of the website HowStuffWorks introduces many things about how they work in cars together with flash animations.

There are several websites that provide excellent expert diagnosis and expertises on some car problems and also have many very useful maintenance information. The ones I visit the most are Samarins, DoItYourself Auto, Trust My Mechanic, Pro Mechanics Online, etc.

Popular stores for shopping Automobile parts are AutoZone, Advanced Auto Parts, NAPA, etc.

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Categories: Miscellaneous

Free Online Math Books and Lecture Notes

July 25, 2007 Leave a comment

Professor Cain put a webpage listing many free online math books, among which, I found the book A Fist Course in Linear Algebra is a really good textbook for beginners to start learning linear algebra from the very beginning up to a level even covering some elementary stuff in graduate linear algebra courses.

AMS also posts some online free books on its webpage.

MIT Open Course Ware is a very good resource of lecture notes used during their classes. Its math part covers the courses ranging from undergraduate levels to graduate levels. I believe that many people will benefit a lot from learning through their open sources, and really thank them for bringing this generous idea into reality.

Categories: Books

Protected: Solutions to some Problems of Preliminary Exams, 2005~2006

July 23, 2007 Enter your password to view comments.

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Categories: To be deleted

Questions on the Moive “Harry Potter and the Order of Phoenix”

July 23, 2007 Leave a comment

🙂 “Confession”: Neither am I quite a fan of Harry Potter series, nor familiar with this series of story. But I was puzzled while watching the movie “Harry Potter and the Order of Phoenix” yesterday.

  1. It looks to me that this psycho new female teacher Dolores Umbridge from ministry of magic arranged these dark creatures to attack Harry Potter in the tunnel in order to frame Harry to violate the ban on using magic outside school. But in the court, it also says that only the powerful ones like Voldemort can drive these dark creatures out of Azkaban. Could she do it?
  2. Voldemort gave Harry a false illusion about Sirius Black being tortured, and he seemed to lure Harry to ministry building and get the prophecy ball. Why couldn’t dark lord find it by himself? It only has thousands of balls there, but the dark lord knows this room where the prophecy ball is kept, after all. Why did he send his death eaters to kill Harry while he already regained full power even the physical form.
  3. Is that psycho new female teacher Dolores Umbridge on the dark side? Why did she want to repel Harry from his magic school? I thought they all were just afraid of dark lord so they pretended to not believe headmaster Dumbledore. But later, it seems that the resigned minister really didn’t know dark lord was back. Then why did that psycho Dolores Umbridge want to frame Harry?
Categories: Movies