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Историческую версию Invisible Ink Pen можно получить на Android
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Invisible ink pen contains a special type of ink made from naturally fluorescent chemicals or organic compounds. When you shine a UV light down on a message or drawing made with invisible ink, the electrons within the ink’s fluorescent molecules are excited, briefly shifting to a higher-energy orbit around their nuclei. When those electrons shift back to their normal orbit, the absorbed energy is expelled in the form of visible light.Что нового в последней версии 1.1.1
Last updated on 23/10/2022
Minor bug fixes and improvements. Install or update to the newest version to check it out!
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Invisible Ink Pen
1.1.1 by ExceptionBond
23/10/2022