The reading is about a Greek defended that was implemented in the Roman navy attack in 2000 century known as "Burning Mirror". The reading disagrees with the possibility of construction of that weapon by Greek people in that time for the following reasons.
First, the ancient Greek was not technologically developed to construct this kind of weapon. Because the technology for manufacturing a large sheet of copper as well as the mirror used in that device was not available at that time. In contract with, the lecturer states that using dozens of individually flat pieces of polished copper, it is possible to construct a Burning Mirror with parabolic shape and large size. Therefore, it is not a true reliable argument.
Second, the burning mirror
First, the ancient Greek was not technologically developed to construct this kind of weapon. Because the technology for manufacturing a large sheet of copper as well as the mirror used in that device was not available at that time. In contract with, the lecturer states that using dozens of individually flat pieces of polished copper, it is possible to construct a Burning Mirror with parabolic shape and large size. Therefore, it is not a true reliable argument.
Second, the burning mirror