i dont think everyone is suitable to be lecturer.like derek chan and foo.they are just simply too impatient and irresponsible.we are not fault since is YOUR equipment which is faulty.our group went back so many times but we just could not do our practical and this is NOT OUR FAULT as what YOU all had said.is the weather's fault.the satelillte's fault.the timing is wrong.maybe we could not do the prac smoothly today cause derek chan was at least 45 mins late.and if we could start the prac earlier.the timing might be right and we could do it smoothly.and please stop giving us stupid excuses to bluff us ok.we are not naive at all.please use your brain to think before you speak.if you dont have one at least use your butt lar!!!! stupid.