Using Invisible Ink
出典: くみこみックス
Invisible ink is utilized within the confines of any ordinary writing device. The message is written on ordinary paper ...
In our wildest spy fantasies, in addition to the any number of ruses employed by undercover agents, is the use of invisible ink to communicate covert messages in plain sight of the enemy. But although our element in the drama could be fantasy, the use of invisible ink in a range of types is really real its uses ranging from the commonplace to the extraordinary.
Invisible ink is employed within the confines of any ordinary writing device. The message is written on ordinary paper as soon as the ink dries it is no longer visible to the naked eye. The strategy utilised to make the message visible yet again dogwatch.com depends on the sort of invisible ink utilized at the commence. These approaches fall into several usually accepted varieties:
The method that most people associate with invisible ink is that which is created beneath the use of ultraviolet light. This can usually be seen in the way of hand invisible fence stamps used for readmission to amusement parks, night clubs, and the like. What is not visible to the naked eye suddenly glows beneath a UV light.
Another kind of invisible ink is acidic fluid of any type, such as wine, orange juice, or even milk. When water is added, the fluid becomes a kind of invisible ink that can not be noticed beneath standard circumstances. Once heat is added, the writing will seem in a brownish color.
Finally, there is invisible ink that can be seen by applying a chemical developer that has an acid base such as sodium carbonate, iodine answer, or silver nitrate. The actual ink can be anything from lemon juice to ammonia.
Several individuals use invisible ink to mark belongings as a means of a theft deterrent. Upon the employment of any of the methods of invisible ink improvement, the item is quickly identified.
The Net can be a terrific resource for researching all the sorts of invisible ink and the methods utilised to create it. You could be shocked by the quantity of household things utilized in such a non-traditional way.
