Authorities in Dubai have apprehended a suspect for orchestrating a fraudulent scheme involving disappearing ink, targeting ...

The principles of cryptography “have a childhood appeal,” he told me, noting how children “write in invisible ink with lemon juice, they speak in pig Latin, they come up with their own codes ...

What did he mean? “This dude, because lemon juice is an ingredient in invisible ink, he thought rubbing lemon juice on himself would make him not appear on the camera.” Johnson tells the story ...

Invisible Ink is one of the standout features Apple introduced to iMessage back in 2016, part of a suite of message effects designed to make texting feel more expressive. While others like "Slam ...

A deranged Texas couple pleaded guilty to forcibly tattooing their two young children while they were restrained, gagged and blindfolded — and then laughing about the abuse when the ink was ...

According to an arrest affidavit, the children’s biological father saw the tattoos and reported them to Child Protective Services, after which Megan and Gunnar Farr, scraped the children’s skin raw ...

In 1915, Muller was executed by firing squad at the Tower of London after being caught using lemon juice as invisible ink to pass on British troop movements. When investigators arrested him, they ...

Agents suspected Muller of being a German spy but it was a humble lemon – on show in the ... But he had in fact used its juice as invisible ink on a seemingly ordinary letter intercepted by ...

The lemon Karl Muller used for writing in invisible ink was an exhibit at his trial ... He pierced lemons with a pen nib to extract the juice and insert secret writing in innocent-looking letters ...

A desiccated 110-year-old lemon that played a key role ... Evidence at his secret trial showed their juice had been used to write invisible-ink letters detailing British troop movements.