i read my notes till 3 before turning in but i couldnt sleep. tossing and turning in my bed. all sorts of formulae keep appearing in my head. what is the potential of a point charge ? should be kQl cos theta/ r^2. then what is R, rydberg constant? 1.0973 x 10^7 or is it 1.0379? Bohr's radius formula is Z^2/ n ( -13.6) or n^2/ Z( -13.6)? ... lots of numbers running through my mind..
then amazingly i started to analyze the reason why i couldnt fall asleep. hmm must be my RAS - reticular activating system [ purpose: maintain consciousness] not functioning properly. the culprit should be the coffee i drank in the afternoon. damn. the caffeine must be blocking my adenosine receptors.. hmm then now if i do an electroencephalograph, my brain must definitely be producing beta waves.
how to read this EEG? alpha waves - normal / relaxed
beta waves - when you are actively thinking
theta waves - drowsiness
delta waves - sleep
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i drew a line.. all those are over already. haha. the last 2 weeks are the time when i felt super knowledgeable. from now on i think all these information will slowly be lost. funny why we are made to learn some things that dont seem practical. like MATHS those heat equations.. i love biology though. i never regret studying bioeng. but it would definitely be great w/o the maths and physics. lol