Pen (pen) is a tool used for writing. The pen uses ink to write it down on a patterned substrate. In addition to the letters or books which humanity has already come to think more "Tools" or "device" that is used for writing, it is no less interesting, as in. Humans take in developing tools that are used in writing as long as several thousand years. In a bygone era, humans could be used '' to soak the soil or stone ground powder mixed with resin or glue from leather. Scribble on the walls of caves or cliffs shelter later may use the land qualified stone by bringing rain or make the bar for easy mixing of water and then scribble or gypsum made into bars to ease usage. Add Registry kaboran the invention of tea from the stomach than the pen. By finishing with the mouth of a variety of sizes. This does not apply to ink pen writing on the surface of the wood, but use a wax coating. Make any letters on the surface wax. Humans began to apply the feather or goose pen. Known as "Pak chicken" can write and write each other for a long time.Later, approximately the 15th century humans start with a pen, metal fabrication and cut into the Middle mouth. To make a long burn without a dip ink writing, every time, but no one can devise a pen with ink on yourself.Lewis Edson Waterman in 1884, has produced a pen with ink in the so-called fountain pen (Fountain pen) in New York, it's just that the United States is a country of Waterman fountain pen, the father of invention.Fountain pen in 1900 have found a new competitor is ballpoint pen. Pen with roller (Ball) is the little pen by klom chawomerika name of John h. Lao is the inventor.At the end of the year 1930 A student newspaper, and the famous Hungarian artists have born the concept of biodiesel from dry ink (ink Quick-drying) printer for the printing of books printing seek how to apply this type of ink in the pen where the ink will not flow and drip out until Mar the paper.There are many types of pens, we can divide.1. the ink will stick with ballpoint pens, paper by rolling of round solid roller pen. Approximately 700-1200 micrometre could do from brass, steel or tungsten carbide, the ink will dry as soon as they touch the paper.2. the fountain pen is a pen that needs to be filled in ink. The fountain pen head, looks into the iron bars. 2. one side is an articulate, Mon lateral, which is for writing. The other is connected to a small tube that is connected to the water-ink.3. highlighter pen that is used in a variety of colors to highlight important messages.4. Pen, ink gel This type of pen is a pen, a small stroke. The writing is sharp, and the slide.5. the feather shaft (the quill) pen is a pen in the past with the butt of a feather has a steel head. There is no ink store. Need a dip ink.6. dip pens ink pens at the time to dip the ink with Quill Pen similar regime.7. Pen pen bamboo or Reed.
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