31 Ekim 2008 Cuma

THE INVENTION OF PAPER
Ts’ai Lun was an officer in China 2000 years ago and he invented the paper which was same as today in A.D 105.He mashed mulberrytree’s bark,bhang and fabric mixing with water.Then he pressed that mush and hung it.
In fact people had been using sometings to write on for centuries by that invention.But that invention made China the most developed civilisation.Surprisingly paper couldn’t come to Europe in following 1000 years.And the first paper was made in Spanien in A.D 1151.
After the invention of press,the need for paper increased.And finding rawmaterial for paper was difficult.In this way,making paper was time consuming.
In the beginning of 18th century,a French scientist-Rene Antonie saw bees making paper without using all those materials in the forest and was inspired by that.Bees were mixing branches with their gastric juice.Rene-Antonie made research on bees’ gastric juice and in 1719 he presented his discovery to the Academy of French Royalty.
The first paper machine was invented in 1798.And this machine has developed for years...

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