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Hmm, looks like no one comes to by blog except Andy, lol. In a way, that's good. :D. Completed all my work, now, start to revise for Mid years. The week was spent slacking, or at least most of it. Never mind, I had fun!

Joke of the Week
Q: What is the simplest way to observe the optical Doppler effect?
A: Go out at and look at cars. The lights of the ones approaching you are white, while the lights of the ones moving away from you are red.