Such A Lovely Complex

coolsciencegifs:

Polymer absorbs water and expands. It keeps almost the same refractive properties as water and appears invisible.

The polymer is Sodium Polyacrylate (thank you, thecraftychemist!)

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Reblogged 9 years ago from thenumberonealpacaqueen (Originally from coolsciencegifs)
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    Same refraction index = same level of transparency
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