Two sisters, lui and lua
This is the story of how the older sister, lui, explains to her younger sister, lua, how she interpreted the famous painting "Mona Lisa" by Leonardo da Vinci .
https://youtu.be/lsqIqIVjLdk
Actually, Michael's Wing is true. I did indeed see it. However, I have since tried to reproduce it in various ways, but I have not been able to. In other words, I have no proof whatsoever. Therefore, I can only leave it to the reader to decide whether he or she believes it or not. I would like to leave the rest to those who are interested. I have tried to describe the circumstances of what I saw in the novel as best I could. I hope that as many people as possible will be able to see the wing as I saw that.
As far as I remember, the wing was quite elaborately drawn. Therefore, I think that Leonardo probably painted the wing while making sure it was correct. But how ? Did he use a dusty glass plate, as in our case ? We tried to reproduce it several times, waiting for the dust to collect on the frame, but we could not.
If the wing were using the structural color principle, then it would have been light interference. There are several types of light interference, and what we saw could possibly have been interference by thin films or interference by minute grooves/projections, etc.. In other words, we may have seen it because of a coincidence of such conditions. On the other hand, I am sure that Leonardo used a highly reproducible method to generate light interference.
Actually, there is one thing I am wondering about. It is Salvador Mundi. The crystal ball on Salvador Mundi's left hand is not an ordinary crystal ball. If it were a normal crystal ball, the projected image would appear inverted due to refraction of light. However, what is seen on this crystal ball is as if seen through a clear glass plate. Leonardo, who had done considerable research on optics, would not have made such a mistake.
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In other words, I think this is some kind of message. Also, looking at the right hand of Salvator Mundi, the thumb, index finger, and middle finger are standing up. Perhaps this is a message that says, "Try stacking multiple (e.g., three) transparent objects, like thin glass plates." In other words, Leonardo may be telling us to look at a painting by creating interference through multiple layers. Of course, this is just my theory.
