Är du så trött på att försöka gissa dig till rätt svar på övningsuppgifterna i Fasta Tillståndets Fysik (i skrivande stund kurskod FFFF05) att du faktiskt tog dig tiden att Googla fram (eller blev länkad till) denna sidan? Då har du kommit rätt.
Jag gillar inte att bli behandlad som en bebis, än mindre av en lärare som anser att det är fullt rimligt att säga “Du har inte rätt att ha tillgång till tillräckligt med material för att kunna studera detta ämne, men om du misslyckas med någon uppgift får du skylla dig själv!”. Därför tänker jag publicera mina lösningar till alla uppgifter på denna sida i hopp om att andra som tröttnat på att försöka lista ut vad alla approximationer är för något kommer hitta dem.
Du kan ladda ner en PDF med alla mina lösningar här. Eller titta direkt på lösningarna i den embeddade PDF läsaren här nedan.
Klicka här för att öppna denna läsare i ett nytt fönster. Om du laddar ner PDF’en så syns inte texten igenom pappret, googles reader ändrar kontrasten så att baksidan syns igenom.
Jag ger inte garantier för att alla lösningar och motivationer är helt korrekta, men jag ger full garanti för att du kommer lära dig mer av att läsa detta än att titta i boken (som för övrigt är ungefär som ett 400 sidor långt diskussionsavsnitt i en dålig labbrapport, jag vet; jag har läst den cover to cover två gånger).
Tips till Föreläsaren: Nästa gång en elev mailar dig med förslag; lyssna, istället för att göra eleven pissed off.
March 8th,2010
Category | tags:
school |
1 Comment
So I’ve decided to go to Japan. Now what?
First off I can just let everyone know that I’m going to be leaving Sweden at the start of July, so I will still be here for almost a half year more. There are some paperwork to be done but the institute through which I’m taking this education makes things quite a lot easier so it’s not that bad.
I said in my previous post that the whole thing was kind of scary; it is! I find that whenever I am moving forward and big changes are happening I’m a little scared. But it’s a good kind of scared. If you’re doing things right in life you should always have a small, small sensation in the back of your head that you might have taken on too much, that you’re changing too quickly, that kind of feeling. Progress is a little scary but you shouldn’t live without progress. Scary is good.
I will be leaving Sweden entirely for a year, the visa won’t allow me to leave Japan without going through a bunch of paperwork to get back in. This of course means that I’ll leave friends and family behind entirely, and I’m sure I’ll miss them. There’s not much to do about it though and it’s something that just has to be dealt with when the time comes.
Before I leave there are some things I want to get done, which leaves me unable to just completely phase out and dream about Tokyo for 5 months until the time comes; I suppose that might be a good thing. Stuff I want to do is get my motorcycle drivers license, I’ve been wanting this for over a year but last year it was hindered by Japan and work. My good friend Jonas has been living in the US for a year come summer and he’s planning a cross-country road-trip over this summer which I’d really like to join in on for a week or two. The plans will be released on his blog this Friday (the 12th) so we’ll see if there are any suitable points for me to get on and off the trip that would have me being there for the right amount of time in the beginning of June. Other than that, I obviously have 4 months of school left, and I’ll have to add some Japanese studies to my ordinary curriculum to be able to have a foundation to stand on when I get there.
All in all, I’ll be going to Japan, but there’s still a lot of stuff to do and to think about before I get there. It seems like a journey in itself.
Sometimes life takes an unexpected turn. This is one of those times.
A short while ago Emma told me she was going to Japan for a year to study Japanese. About four or five years earlier I took a short class in Japanese and ever since, I have wanted to go to Japan to study Japanese. As you may know I have been in Japan on two occasions and before both those occasions one alternative was to go there to study over the summer. That alternative was on both occasions dismissed because of various reasons, mostly economic ones.
After (the Swedish equivalent of) High School I took a year off from school. Something I had planned on doing pretty much since the start of High School, but taking two years off was never an alternative in my mind. Going to Japan a year to study was therefore never an alternative even though it was something I really wanted to do.
Since the very moment I decided to go to University it has been my mantra and the code by which I live to put school first, to keep my head down and power through when required and to finish everything as fast as possible. I have in my mind “always” said: “I will finish school in 5 years. Get done as soon as possible and then start my ‘real life’.”
Not once have I ever thought about the possibility to take time off school to pursue any other interests. A big reason for this is of course that I actually kind of like school. I find the majority of the things I study extremely interesting. I like the challenge that school brings and I love to learn new things every day.
Since taking a year off school was never really in my play-book, I always imagined I would go to Japan to study Japanese for a year (or more) after I was done with school. Things never really turn out the way we expect them to though, and this is a good thing. If everything in life was expected and could be planned for; it would be boring.
When Emma told me she was going to Japan, I immediately felt that this is an opportunity of a life-time, this was not going to happen again and was what I had always wanted. I asked Emma if I could join and she shared my opinion that a shared experience is a greater one. There was still the matter of taking a year off school though which was somehow wrong in my mind.
Since I don’t get a bachelor degree at my school we don’t really follow any strict programs or such, we just sign up for courses as they come along and if we wish to take time off we just don’t sign up for any courses at all. It is for everything practical a non-issue. There are no physical restraints on taking a year off school, no disadvantage at all.
The reason I wanted to power through school in one go was because I wanted to start my “real life” as soon as possible. I wanted to have Japan part of the “real life” and not of my school life. I have realized that this imagined sectioning of my life is really only rhetorical, it is not actually how I feel, but how I state the reason for not taking time off school. There is really no difference between doing 3 years science, 1 year Japanese and 2 years science instead of 5 years science and 1 year Japanese.
The only real disadvantage is that I might loose focus on school, might loose the edge-knowledge of how to solve partial differential equations and calculate the wave-functions of electrons in a solid-state crystal of Aluminum-Arsenic. This is actually a real issue, one that I can’t say is utterly meaningless in all senses. This will happen, and it is a sacrifice I have to make. Now I can lessen this disadvantage by bringing some books and reading a little in them once-in-a-while, but ultimately it is a sacrifice. The question here is if it is worth this sacrifice to spend a truly fantastic year with my best friend and gain experiences and moments in life that could not possibly be attained in any other way. The anwer is simple.
There is also the risk of me not returning to school, but becoming caught up in another life entirely and simply quit. I almost forgot to write about this because the risk doesn’t exist in my mind. As I said, I love learning, I love what I study. In my mind there is no way I can exist in my future life without having a masters degree. No, quitting school just isn’t an alternative. No force however strong could ever convince me that taking those two last years would be unnecessary or boring.
It has been hard to overcome my mental image of how life was supposed to be and to accept that taking a year off school will not be a bad thing. Having done it now however, having accepted that it really isn’t a bad thing; I feel like I’m about to live a dream and am on the cusp of something truly amazing, which actually scares me just a little bit.
I am going to live in Tokyo for a year. Can you believe that?
Preface
As you may know I tried to get into an exchange program to study a year in Japan. Sadly, I was not accepted into the program. Probably due to my somewhat lacking study-plan, I did not have time to fully prepare and contact the schools to get a course-list and such, and probably partly because students are ranked on their student-related social-activities, of which I have none. All my social activities are about trying to build a company and improve myself by studying outside of school. Anyways, for the application I wrote a Statement of Purpose, a letter saying why I wanted to study in Japan. I’m somewhat happy about it so I thought I’d publish it here. It is slightly edited to remove things specific to the school the application was meant for.
This text is obviously geared toward studying science and technology in Japan but could easily be applied to a more general sense of why one should always consider studying abroad.
Statement of Purpose
In a globalized marketplace one must know what is great in other parts of the globe. This is why I have always been very interested in traveling and experiencing other cultures first-hand.
During my personal travels I have been to Japan twice, staying for a month each time. Of all the places I have been, I have always felt most at home in Japan.
Japan has a bustling science community filled with extremely bright and innovative people. If I had to choose one thing that signified Japan with me it would be technology. As an Engineering student I put technology at first hand, I believe we can solve the worlds problems and change the way we think, act and live with technology.
Japan is constantly evolving technology and solving difficult problems with innovation. In my view they are far beyond the rest of the world in many fields of study. I think I could gain great insight by studying technology in the Japanese way.
I am convinced that I will be part of Japanese society at some point in my life. If not during my education then in my work after school. It is a wonderful country with so much to offer, so much diversity and culture and an absolutely wonderful atmosphere of peaceful and respectful people.
I believe that I could benefit hugely from being able to take part of the Japanese education system and being able to experience the country and the science taking place there during my own education. I think it would lead me to become a much better scientist and engineer.
What I would like to do while studying in Japan is of course to continue my current educational direction, which is scientific research and technological development.
I have also chosen to study in Tokyo because I have been almost all over Japan but I have yet to find a place so wonderful as Tokyo. Wether I’m emerging myself with technology in Akihabara or enjoying the wonderful scenery of Tokyo Bay from Odaiba, Tokyo is the one place in the world I truly feel at home.
The school year is divided up in four parts, each one is 7 weeks. The first one is over now and it feels really awesome, because this means I have almost 4 days of complete freedom.
Next period will start on Monday and I will start a new course and continue the big-ass nuclear+atomic physics course. The new course will be numerical methods for solving differential equations.
The purpose of the course is to give knowledge about methods of numerical calculations and using computers to approximately solve both ordinary and partial differential equations. This involves construction, analysis and application of numerical methods and computational algorithms for differential equations. Solving problems with computers is a central part of this course.
Which actually sounds pretty fun!
But I have signed up for an extra course as well, and I can’t really decide whether or not to actually take it. The course name is Complex Economy and this is the course home page and this is the description:
Why do banks, consulting firms and insurance companies hire more and more physicists? – Because the methods from statistical physics become increasingly important to model economical systems and, in particular, the capital markets. This course is an introduction to this quickly expanding field. It is often called Complex Economy or Econophysics.
The only real downside of taking this course is that it adds two lectures per week, and one of them is on Monday mornings. This really sucks since my first lecture on Mondays would be at 1pm otherwise. The upside of this is that I will get 2 hours every Monday that I’m pretty much forced to stay in school and work. But since I can’t decide I thought I would let you decide!
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October 23rd,2009
Category | tags:
school |
4 Comments
