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A fountain pen is a nib pen that, unlike its predecessor the dip pen, contains an internal reservoir of water-based liquid ink. The pen draws ink from the reservoir through a feed to the nib and deposits it on paper via a combination of gravity and capillary action. Filling the reservoir with ink may be achieved manually (via the use of a Pasteur pipette or syringe), or via an internal filling mechanism which creates suction (for example, through a piston mechanism) to transfer ink directly through the nib into the reservoir. Some pens employ removable reservoirs in the form of pre-filled ink cartridges. A fountain pen needs little or no pressure to write.

liest historical record of a reservoir pen dates to the 10th century. In 953, Ma'ād al-Mu'izz, the caliph of the Maghreb, demanded a pen that would not stain his hands or clothes, and was provided with a pen that held ink in a reservoir and delivered it to the nib, which could be held upside-down without leaking, as recorded i

hat some form of pen with an ink res

a founders Edwin Binney (left) and C. Harold Smith (right). From Crayola's website.

Everyone knows what the post- it notes are and  almost everyone use them in their normal life,but these amazing invention was not a planned product. Unlike other inventions no one got the idea and then stayed up many  night trying to make it happen, this was a total mistake.

In 1970 a scientist named Spencer Silver was working in the 3M research laboratories.He was working really hard trying to find a super stong adhesive, but instead  he developed an even weaker adhesive than what 3M already had, but he did not threw  it away.4 years passed until Arthur Fry came to the rescue!!!Arthur was singing in the church's choir and he used a paper to remind him his place in the anthom, but the reminder kept falling out of the book. He remembered Silver's adhesive,and he applied it to the paper   and it was a total success because the reminder stayed in place and he could take it out without damaging the pages or the reminder.In 1980 3M began selling  the post it notes.Even though now  you can buy the post it notes of  many colors,sizes and shapes the original ones were a small square in canary yellow color.

Arthur Fry was born on august of 1931 in  Minnesota, but  grew up  in a small town in Iowa and later in Kansas City. When Arthur finished school in 1950 he moved back to Minnesota to  the University of Minnesota to study majoring in Chemical Enginneering. In 1953, he began working for 3M in new project development while he was still undergraduate and worked  there until 1990. Now he has 3 children and 5 grandchildren and is very famous for a inventetion of  what is probably the most  important office supply product ever since the paperclip.