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    Where can i know what conference related to material science can be found?

    where can i know what conference related to material science can be found??? as topic
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    Why there are much more metallic elements in the world than the non-metalllic one?

    but the truth is , even though i know these electrical configuration, i still can't used explain why metal is much more than non-metal in the periodic table. It is because, using those configuration, i can only tell which element is more stable in nature.???
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    Why there are much more metallic elements in the world than the non-metalllic one?

    Why there are much more metallic elements in the world than the non-metalllic one??? We can see on the periodic table most of the elements are metallic but why? is there any relevance to the electronic configuration? I can't find any helpful web-site to solve this problem.Please give me some...
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    Electric charges moving and magnetic field

    I think that no matter how much of the charge are given, there should have a magnetic made. But whether or not it is easy to found . is it ?
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    What happens when light

    The energy of the light wave can also be absorbed by the air Jim's body or the mirror.Finally the amplitude of the light will tends to the general level such that the light will turn dark after two hours. Am my guess right ?
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    What happens when light

    I think that the room will be dark at the end. No matter how the light is reflected in the room how much time, there should be light abcorbed by the men right?If it continue, the light will be totally abcorbed by the men .
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    Help with a tension problem

    yes , I think your equation is right. but i want ask futher question , is "a" and "g" in the same direction? I think M2g+M1gsin30=T would be better. or I think in a wrong way?
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