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Richard Walker

Fluorescent Tonic

Visible to anyone in the world

It's little surprise that day-glo items like highlighter pens fluoresce under Ultraviolet but who would have guessed that Indian Tonic Water is also fluorescent? It's the quinine in it that causes the fluoresence.

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Hi Richard,

Very pretty, reminds me of a lava lamp!


Richard Walker

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Gosh !!! I remember those, I loved them

R.  smile