Advanced ancient technologies
In ancient times much of the knowledge, experience and skill was usually passed on to the student through the master. If, for whatever reason, this relationship breaks down and the chain between master and student is cut, the principles of making a wonderful device or an important invention will remain forever unknown. These technologies have been so advanced in many cases that even today's secrets cannot be discovered or imitated. In this article we have introduced to you the history of some superb technology, the basic principles of which are completely unknown and no one knows how these technologies were used