The pen is a writing instrument. It has a tip, with a steel ball and when it touches the paper it will expel ink while it rotates.
The tip can be a medium or fine diamond. It´s the most popular writing instrument in the world.
Basically it is a plastic tube with ink inside but it has a very important element, the steel ball I commented on before but it is the most important element of the pen because it expels the ink. it is a universal writing instrument.
COMMON ELEMENTS IN PENS :
-Button: opening mechanism
-Paperclip: mechanism to attach to the pocket
-Pointer: bottom of the pen
Ladislao Biro (a Hungarian/Argentine) and his brother Georg, made the pen to replace the feather. This is the story of the pen. Currently there are a lot of them.In conclusion the pen is very important in our life.
Lucía Santana Hernández