I remember last year (around March-April 04), when I took Solid State Physics class. I didn’t feel stress for that class, Prof Rudolf treated the course from semi classical approach, which made me easy to understand (I just passed the quantum mechanis and its application, the rest seems so easy once you understand the bra-ket formalism and the probability concept of an event, hahaha.) No wonder I can make the homework and pass the test with fun. But the terrible thing happened, my brother (who is the researcher in solid state thing) asked me, “so... 

The frequence of natural disaster in Indonesia is increasing. Focusing in earthquake, the plates that moved and created tsunami on 26 Dec 04 again moved to make earthquake 8.2 RS in Nias Island (North Sumatera) on 18 Mar 05, and then went to Mentawai Island (West Sumatera) with 6.7 RS on 10 April 05. Early in the Monday morning 11 April, Talang Mountaint (Solok town, West Sumatera) began to cough the vulcanic dust to the air. If this trend keeps going, then the plate under the Java Island must be worried about. I wrote an article of the earthquake in my... 

One friend asks me, Tell me about Einstein’s Relativity. What relativity, special or general? Or just the principle of relativity?. He is not sure, so I decide to write a short of principle relativity description, which I think is the basic idea everybody must know before talking about relativity theory. Short I mean is really short. We begins with the big conflict between Maxwell picture and Newton picture of the world.  Read More →

I don’t know how many people cares about “tag html validation”. I probably don’t care too much. But I was curious with the link which by default provided by WordPress, then I clicked it… The result, this situs is valid: Cool, I wonder how the validation works… it doesn’t have to be simple, computer can compute very fast (eventhought the way it does is lesser effective than our way to compute.) Does it really read thru all the tag html of the sites?  Read More →

I have to admit, I am not good at math. (But it doesn’t mean I hate math.) Naturally I usualy draw pictures or diagrams to understand something, or in some case intuition is enough. Unless it is necessary, I always avoid math or any complicated equation. Respect to that problem, we all must thank to Wolfram with his cool Mathematica. That should help a lot lazy stupid theoritist like me. But then comes the next problem: since I don’t grow up with computer, I’m a bit late to get use to Mathematica. So, to learn it is to relocate some time,... 

EVERY PROBLEM HAS A SOLUTION! Not all solution can be solved right away. You need: time. But there is a thing you can find right away, feeling of: curiosity, passion, possession, unstress, relax… ONLY WHEN YOU ENJOY THAT PROBLEM! The contents of this site are in process of moving from old to new system. Soon “the my true romance story” will be yours…..  Read More →