An anonymous do-gooder sent shoppers in to a frenzy when he showered them with bank notes on Saturday.
Sketches demonstrating the laws of friction have been identified within the margins of Da Vinci's notes.
Researchers are developing clothes that can be cleaned simply by exposing them to a light source.
A British historian has found hidden annotations within the pages of a Bible published back in 1535.
Students and teachers across Colorado have been encountering strange symbols at their universities.
Every note in the set has been replaced with actual cash to celebrate the game's 80th anniversary.
Amy Jones discovered a message warning her that there was something sinister behind a locked door.
Thousands of Albert Einstein's original documents have been uploaded by the Princeton University Press.
A notebook belonging to a member of Robert Scott's Antarctic expedition team has been found in the ice.
German musician Anna-Maria Hefele possesses the remarkable ability to sing two notes simultaneously.
A mischevious monkey turned out to be an unwitting Robin Hood in India's Shimla region at the weekend.
The 1,200-year-old wooden notebook and tool was the ancient equivalent of a modern tablet computer.