just a simple aluminium foil can help you increase the intensity of light....

Step 1: Fold the Aluminium Foil Over the Paper

tear a aluminium sheet equivalent to the size of the paper you are using .

Step 2: Make It a Little Concave So That It Could Reflect and Focus Light

<p>Could you please substantiate on how it actually increases the intensity of light and if you've used any sources could you please send me the link.</p>
<p>nice! :)</p>

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