about the formula for refractive index, sin i/sin r. The "i" is always the one from the air travelling to the medium right?

fooled around during chinese prelim.

all those having prelims tomorrow GOOD LUCK!

just had a dinner at Burger King

afraid of tomorrows maths paper 1-_-

going out for dinner~ bye .

crap. His flooble chatterbox is dead-_-

nothing.

nothing, and gets nothing what am i talking about-_-

karma faster rise~_~