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How do modern light bulbs work ?


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#1    Saru

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Posted 25 April 2014 - 09:32 AM

How do modern light bulbs work ?
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Click here to watch video - 02:58s

We use them every day and take their functionality for granted, but how do light bulbs actually work ?




#2    tomelis

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Posted 25 April 2014 - 03:57 PM

I will have to show this video for my little cousin :)





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