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Thread: I need HELP!

  1. #1 :?: I need Help! :roll: 
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    some of my friends that they are about 11-12 years old asked me to help them with some beautiful and exciting things in math , physics ,chemistry , astronomy ,...
    they are just learners and they dont know any thing more than their school books but they like to start researching and I thought I should tell them a little about these subjects for them to find the subject they like to research on and for example I told them about mobius band in math or I told them the fundamental things in astronomy but I dont know any more subject and I need HELP! :wink:


    The important thing is not to stop questioning. Curiosity has its own reason for existing.
    --Albert Einstein
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  3. #2 Another thing! 
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    Another thing I wanted to add is I prefer recieve some exciting experiments for example.
    I think this way they want to go search for the reasons of the result of experiment and it would be good. :wink:


    The important thing is not to stop questioning. Curiosity has its own reason for existing.
    --Albert Einstein
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  4. #3 Another thing! 
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    Another thing I wanted to add is I prefer recieve some exciting experiments for example.
    I think this way they want to go search for the reasons of the result of experiment and it would be good. :wink:
    The important thing is not to stop questioning. Curiosity has its own reason for existing.
    --Albert Einstein
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  5. #4  
    Forum Cosmic Wizard SkinWalker's Avatar
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    I deleted your other posts and merged these two. Crossposting is frowned upon here and multiple posts of the same message in different forums is crossposting.

    Beyond that, Welcome to The Science Forum and good luck with your request!

    Skin
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  6. #5  
    JS
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    One little demonstration that sparks the imagination is to take a thermometre and put the tip into acetone or some similiar, easily evaporated chemical. When you put the thermometre in, nothing happens. When you pull the thermometre out, the reading drops, as thermal energy from the thermometre is spent on evaporating the acetone.

    Using a similiar technique you can cool a bottle of water on a hot day by wrapping it in damp rags and leaving it in direct sunlight. The photons will knock the most energetic water molecules out of the rag (evaporating part of the water), which means that the water still in the rag will be cooler. Reputedly it is possible, with the right dampness in the rags and regular re-dampening, to freeze the water in the bottle completely.

    Kids usually find the first bit mildly curious, but the second one hooks them.
    And God said: Div(E) = \rho / \epsilon_0, Curl(E) = - \partial(B,t), Div(B) = 0, Curl(B) = \mu_0 (j + \epsilon_0 \partial(E,t)). And there was light.

    [...]

    And thus God sent forth Man from the Garden of Eden after a heated discussion of dresscodes and eating habits.
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