Since my recent research subject is already decided, a plan to build up a solid background focusing on my research is important.
Generally speaking, my research area is in solid physics. However solid physics is a very broad discipline. I think I should focus more on crystal and defect structure. About the transport of defect, I need to study the diffusions in materials.
To analyze the thin film, we use TEM and X-ray. Although I don't like experiment, I definitely have to be familiar with them.
So far, all the topics mentioned above can be reviewed through the textbook of physical metallurgy.
Unfortunately, ARC turned my explanation down and still charged me for the broken racket even though I wrote such a convincing letter. The replying letter is as followed.
I have examined the racquet that you turned in severely broken. Our staff specifically examines equipment when checked in and when checked out. Based on the severity of the damage there is no way that I can wave the charge from your account. It is very obvious that this racquet was damaged by something other than just waving it in the air.
All of our equipment is highly used. My suggestion is that if you feel that the racquet was damaged when you received it you should have notified the staff before leaving Member Services and exchanged it for another one. We can only go by the proof we have of the damaged racquet.
The charge will remain on your account. If you do not feel comfortable with the rental equipment that we have my suggestion is that you purchase your own equipment to use in the facilities.
Sincerely, Kristina Pettigrew
I decided to try again. This is my response and I hope it could work.
I am writing this letter because I believe I used the racket very appropriately. But I am afraid that I have no way to prove how it just broke in the air since I have no video tape to record it. However if there is indeed some surveillance camera on duty in the badminton court, it could prove what I said was totally true.
I will not bother you to find the video tape (if there is one). I just hope you could understand that what happen to me is really physically possible. When a material has a crack on the surface, there will be a phenomenon called stress concentration. The crack will not cause the fracture immediately because it need some time to propagate. But the crack will propagate faster as it's getting deeper. When the crack become deep enough, it will break even under normal stress like 'waving in the air' because of stress concentration. By the way, since I am more or less professional in badminton, when I said 'waving', it's obviously not slight waving but with some speed and strength.
No matter how, I think you are right about that I should exchange the racket in the first place. I just want to make it clear that I didn't make up some story in order to avoid the charge. I guess I will accept my unluckiness although I believe I should be waived from that.
( I went playing badminton tonight and peculiarly the racket borrowed from ARC went broken. I was told that I would be charged for this. So, I wrote this letter to the manager. The points is so strong that if I were the manager, I would be convinced.)
My name is Wei-Ying Chen. I went to ARC on Wednesday night and borrowed a badminton racket. The badminton was broken when I was using it. I was told that I will be charged.
I think that's not my fault. First of all, I used the racket appropriately. I did not do anything brutal like knocking the ground. All I did is regular waving the racket in air to catch the ball. It's during the motion I waved it in air when it suddenly broke and twisted. Although even I can hardly imagine, it did happen.
Secondly, there was already a deep crack at the bottom of the ring before I borrowed it and I believe it is the reason to its failure. I have noticed that for a long time because I borrow rackets every saturday afternoon. I borrowed this kind of defected rackets several times and they never went broken this way. So, I didn't expect it to break this time, either.
Maybe I should return this defected racket and borrow a new one immediately in service center in the first place. But I think ARC is also responsible not to lend students this kind of 99%-already-broken rackets. It's really not fair to the last 1%-to-break user.
The above is my explanation and I hope you could understand.