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China - the ancient state located in the Central and East Asia. The name "China" - China - has occurred from an English word cha - tea. Here just all errors about the Chinese civilisation also begin. Everything that was objectionable to colonizers from England and America, they named exotic. Therefore in the world were the blanket of customs, traditions and culture of this country is known only, the wisdom of the people which have been saved up throughout several centuries, was accessible to studying only sinologam.
Anything practically has not changed and now. Only small circle of experts ...

The history of a laser drawing in glass totals an order of 40 years. The first copyright certificate on drawing by a beam of the laser in glass volume has been given out in the USSR in 1971
Not without reason say that all ingenious - is simple!
In the beginning glass inside points were a by-effect at laser work, and because of them laser devices failed. Then, of course, have found a way from them to get rid, having found out the occurrence reason. But, time at this effect is a negative side, means should be and pluses. Here that was ...