Who said that the ancients must be dumber than us modern people, in fact, this is absolutely not necessarily, in the current archaeological work found too many ancient cultural relics that shock the world, their discovery makes us extremely shocked, because it is really impossible to imagine that the ancients can produce such "black technology" cultural relics, many times even modern technology can not be explained, and even copy is difficult.
Presumably, everyone also knows the cloud pattern copper forbidden bar, and what Yue Wang Gou Jian sword, Warring States crystal cup, Qin figurine copper sword, etc., these cultural relics still make us feel ashamed, which can only say that the ancient people were indeed too creative, can create such an epoch-making invention.
What is to be introduced in this article is also an ancient "black technology" cultural relics, this cultural relics is considered to be a "mirror of the demon", experts in the discovery of its strange phenomenon is indeed very shocking, although from the current point of view, this is just a principle of optics, but this "mirror of the demon" appeared in the Western Han Dynasty, more than 2,000 years ago, which is very amazing!
In fact, decades ago, the staff of the cultural relics bureaus in various regions would often go to the countryside to publicize the knowledge of cultural relics protection, and there were also cultural relics lost in the folk, and the cultural relics that were leaked in this method were indeed very many, including this "mirror".
This "mirror of the demon" is the famous Western Han "see the light of the sun" mirror, this name is still very tall, when the experts in the Western Han "see the light of the sun" mirror is still very happy, after all, from the year alone this belongs to the Western Han Dynasty, and from the point of view of damage, it is also very well preserved.
The Western Han "See the Light of the Sun" mirror has a radius of 3.7 cm, a diameter of 7.4 cm, an overall net weight of about 50 grams, and the overall presentation is round, the same as our modern mirror, its back has a very beautiful ornament, not how exquisite, but also very good-looking.
So in the end, what is the strange effect of this Western Han "seeing the light of the sun" mirror, which actually shocked the world? Because it has a magic-like effect, that is, it can not only be used to illuminate people, but also under the sunlight, it can present a scene on the back of the mirror, which is undoubtedly very strange.
At first, it really shocked the experts, but how did this happen? Later, I learned that this is actually a projection principle, using the uneven thickness of the mirror, resulting in a casting stress.
Nowadays, there are only 4 such Western Han "seeing the light of the sun" mirror in the Shanghai Museum, and they are all from the Han Dynasty, but what is even more shocking to the experts is that no one can copy the same mirror as this Western Han "seeing the light of the sun" mirror, which is extremely puzzling.
No wonder foreigners call the Western Han Dynasty "seeing the light of the sun" mirror a "magic mirror"!