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[sarkeizen]

can i ask you a question @sarkeizen?

You just did.

[profitis]

but i got no reply.do you think it is logical for a science teacher to ask a student to build a hydrogen concentration cell and a copper concentration cell for exams @sarkeizen..

[sarkeizen]

but i got no reply.

Actually you did.  You just don't like the reply. 

do you think it is logical for a science teacher to ask a student to build a hydrogen concentration cell and a copper concentration cell for exams @sarkeizen..

Is this going to force something that is absolutely necessary to make the argument "It's possible to learn, strictly by reading textbook to make a device that will power something like an ipod forever"?

[profitis]

in your case yes @sarkeizen.your answer will definitely help the audience force a irreversable conclusion.so why dont you help us out by answering my question?you can answer it just for the sake of answering it sir...why be shy.

[sarkeizen]

in your case yes @sarkeizen.your answer will definitely help the audience force

Are you saying it forces something that is absolutely necessary to make the argument "It's possible to learn, strictly by reading textbook to make a device that will power something like an ipod forever" or that it "helps" something stupidly vague and poorly defined?

It sounds like the later.   Why so shy about being clear about what you're saying....seems pretty shifty to me.