A researcher discovered hidden messages called hieroglyphic cryptographies on the Luxor Obelisk in France. Some of the hidden messages were propaganda asserting Ramses II’s power. Messages on one side ...

Stuck on what to write for Secret Santa? From office-safe notes to warm wishes for friends, here are easy, thoughtful ...

Reporters writing for Nikkei Asia have found 17 English-language preprints—scientific studies that have yet to be peer-reviewed—published on the server arXiv with something curious literally hidden ...

Advancements in artificial intelligence (AI), especially large language models (LLMs) like ChatGPT and open-source counterparts, are reshaping how people communicate daily. These AI systems generate ...

It is a classic rite of passage for nerdy kids to write secret messages using lemon juice. If you somehow missed that, you can’t see the writing until you heat the paper up with, say, an old-fashioned ...

A Hillhouse student’s eyes widened as he applied grape juice and heat to what appeared to be a blank piece of paper — but instead held a secret message in invisible ink, written as part of a course ...

During the 1980s, a moral panic swept across the landscape with the mistaken belief that there were Satanic messages hidden in various games, books, and music that at any moment would corrupt the ...

Have you ever wanted to send a secret message to a friend that no one else can read? Invisible inks can help you do that! When you use an invisible ink to write a message, it quickly disappears. The ...

According to Numerology, your birth numbers carry secret messages which you never realize and now it is the time when we are ...