Pen
A pen is a writing instrument which applies ink to a surface, paper. Pens range in colors, but are mainly found with black and blue ink. Pens may be categorized by the kind of tip on them. The main modern types are:
- ballpoint pens
- fountain pens
- rollerball pens
- marker pens
- Technical pens
- Space Pens
- Mechanical pens
Ballpoints, fountain pens and gel pens are sometimes erasable—their ink may be erased.
The ballpoint pen
There are two basic types of the ballpoint pen: disposable and refillable.
A power load that was very similar or the same as the ballpoint pen was developed by the Hungarian journalist Laszlo Biro. Biro developed a new tip consisting of a ball that was free to turn in a socket. The word used for ballpoint pens in Argentina is birome because Laszlo Biro lived there for many years; also, biro can be used to refer to a ballpoint pen in British English. It was originally invented for the British RAF, as problems occurred with fountain pens due to the low air pressure aboard planes in flight.
i like pens, they are neat, yo.
See also
