ok i think its time to say sth since i havent said anything for a long time.. and my blog is starting to look abandoned
認識我的都應該知道 im somewut passionate abt the environment and stuff
when ppl ask me y i study chem eng, i say i wanna save the world
i usually say that just for the comedy effect (for some reason its strangly humorous)
but it is in fact the only reason y i study wut im studying
big dream eh?
so idealistic while so unrealistic
but i just think that -
knowing that i may very possibly fail is not an excuse for not trying
不太知道要怎麼接下去了
coz there r so many ideas floating around
i would love it if i could cover all but its just not possible
maybe if u r interested u can just ask me in person..
damn it its hard to put ideas in words
ok
lets start with "waste"
as in garbage, electricity, water, and any of the resources
i think most ppl already understand the concept im goin to talk abt, but some might not
first of all, i want to say that i hate ppl who force me into believing wut they think is right
so im here just trying to convey these ideas, and u can decide if u want to keep them.
for any fossil fuel, once u burn it its not coming back
electricity is not very much different because a great portion of electricity is generated by non-renewable sources like natural gas, coal, nuclear and others (there r few more important ones but i forgot)
for plastic and other non-decomposible materials like styrofoam, once u use it, its gonna be in the landfill for a freaking long time.
enough with the lecture, here is my point:
it doesnt matter if it cost u 50 dollar or 5 cents, the gas u burned will not come back, and the bento box u used will remain long after u r gone.
the price tag does not mean everything, coz the theory of economics usually neglects environmental impacts
it makes me wonder when i c ppl use ugly, toxic styrofoam rather than regular, washable plates. when i ask them, they say "oh it costs the same" or "oh it costs only 10 cents more". but.. OMFG, if it costs the same, y would u use it at the expense of the ecosystem, and if it costs more.. plz enlight me.. i have no idea y u would do that (except if u hav serious 潔癖)
some ppl also like to turn on comps 24/7 and let them idle. electricity only seems clean because u don c exhaust smoke coming out of ur appliance. the smoke and pollutant are generated at power plants, but u just dont c it. thats the reason y ppl ought to 節約用電, not coz u waste money. in fact, i don care if u r broke paying for electric bills.
if u do not agree, its cool
but plz dont act certain way simply coz im around.. that would make u a phony
phew thats all for today
Thursday, March 31, 2005
Tuesday, March 08, 2005
redundant design
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The use of one loud alarm clock and one annoying alarm clock is an example of an engineering technique called redundant design. Two alarm clocks are placed in different locations; one serves as the primary system, and the other one serves as the back-up system. With two alarm clocks operating separately, the risk of skipping-due-to-involuntary-oversleep has been greatly reduced. Additionally, the effect of unforeseeable battery depletion scenario is minimized because of the back-up system. The failure rate of this design, however, increases exponentially with the shortening of sleeping time.
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