Sunday, July 24, 2011

How invisible ink works?

Cobalt(2) chloride hexahydrate, dissolves readily in water to give a red solution. If we use this solution as an “ink”, we can write secret message on paper. The writing is not visible when the water evaporates form the paper. When the paper is heated, however the message can be rad.
If you don't want to be entangled in the science and just want to write with such magic ink, just use juice of onion as a ink. To read the massage again heat the paper. And enjoy yourself !

For an another interesting trick, go to the page 'Fun Creation'.

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