Useless fact
The metal band that holds the eraser onto the end of a pencil is called a ferrule.
Why this is true — According to major English dictionaries, a ferrule is defined as a ring or cap, typically of metal, used to secure or join parts together, specifically including the band on a pencil.
More useless facts
- The small extra pocket on the front of jeans was originally designed to hold pocket watches.
- The metallic smell on your hands after touching coins is actually a type of human body odor triggered by the chemical reaction with the metal.
- The wire cage that holds the cork in a bottle of champagne is called a muselet.
- The pleasant, earthy scent produced when rain falls on dry soil is called petrichor.