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Secret Ink

Posted Oct 03 2009 10:00pm

Today Ethan read all about secret ink in The Dangerous Book for Boys. One of the agents that can be used for this disappearing ink is urine and, of course, Ethan wanted to try it.

Uh, I don’t think so.

The book says milk works, as well as lemon juice and egg whites. The idea is that heat from a flame will make the words on a piece of paper re-appear…

Perhaps Ethan should do these little experiments with Daddy!
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