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![[Post New]](/templates/default/images/icon_minipost_new.gif) 10 Dec 2006 18:09:15 IST
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An electron in en electric circuit continues to flow in the direction opposite to the flow of current no matter whether it is coming out of -ve terminal or entering into +ve. The electron entering into the +ve terminal cannot be distinguished from the electron coming out of the terminal because of "PRINCIPLE OF INDISTINGUISHABILITY" according to which quantum particles such as electrons cannot be distinguished from other electrons as all are having identical mass, charge, spin or other physical parameter associated with them.
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The Scientist does not study nature because it is useful; he studies it because he delights in it, & he delights in it because it is beautiful. If nature were not beautiful, it would not be worth knowing, life would not be worth living. Ofcourse I do not here speak of that beauty that strikes the senses, the beauty of qualities & appearances; not that I undervalue such beauty, far from it, but it has nothing to do with science; I mean that profounder beauty which comes from the harmoniuos order of the parts, & which a pure intelligence can grasp. |
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