The craze set off by "Nezha 2" is still heating up, not only the protagonists Nezha and Ao Bing are loved by everyone, but even the supporting actors who have appeared for a few minutes in total have also exploded out of the circle, such as Shiji Niangniang, who "stays in the green mountains, and is not afraid of no firewood".
So what kind of stone is the lovely Shiji Niangniang? Today we will talk about it in detail.
What is the real body of Shiji Niangniang?
Shi Ji Niangniang's image in "Nezha 2" is very different from everyone's childhood impression. She has a dull complexion, freckles on her face, tears off a copper mirror, and wears a red hairpin on her head. I'm sure when you watch the movie, a question pops up in your mind: What kind of stone is this?
Shiji Niangniang's debut丨"Nezha's Demon Boy in the Sea"
From her appearance, we can get a glimpse or two.
In the movie, Shiji Niangniang is not only black and strong, but also has black and bright hair, which shows that she contains a lot of "dark minerals". Many minerals rich in magnesium and iron are relatively dark, and are called "dark minerals" in geology.
If you look closely at her skin, although it is a little angular, it is not rough, and we do not see large particles of mineral crystals. Therefore, Shiji Niangniang's body may be cryptocrystalline or microcrystalline, which is a common feature of eruptive igneous rocks.
Shi Ji Niangniang can also break the brass mirror by hand, and the Mohs hardness of the brass alloy is about 3, so she is much harder than this.
Therefore, Shiji Niangniang is a large piece of eruptive rock with high magnesium and iron content, that is, basalt.
玄武岩丨Geologyscience
You may notice that there are many holes in the basalt that as the basalt's magma cools, the gas spills upwards and forms these pores at the top. These small pores run to Shiji Niangniang's face, forming many small freckles, and then running up to the hair, it will appear to be in a towering bun.
Moreover, Shi Ji Niangniang's complexion is slightly purple, and even her mana is purple. The purple color of basalt means that these rocks may be in an oxidizing environment, where the iron element changes from Fe2+ to Fe3+.
Purple basalt on the right. If you look closely, this is really purple丨Wuhan Museum of Natural History
At this time, we look at Shiji Niangniang's headdress and have a guess about it: red agate. Because it is produced from basalt, and its bright red color also comes from iron oxide. Other red gemstones include spinel, tourmaline, garnet, etc., but iron does not allow them to form a transparent bright red color, and second, they are not as common in basalt, so they are not likely to coexist with Shiji Niangniang.
This piece of red agate is about 20 centimeters high, which is equivalent to a palm-length Palace Museum
Having said that, when Shiji Niangniang was defeated by Nezha with a fire lotus, she became a cute little one, and her lithology changed again.
Shiji Niangniang mini version丨"Nezha's Demon Boy in the Sea"
After basalt is burned by flames, thermal metamorphism occurs at high temperatures if it is not completely melted. Therefore, the mini version of Shiji Niangniang may be metamorphic basalt. What kind of rock it has become depends on the temperature and pressure, which depends on how hot Nezha's fire is and how fierce the explosion is.
Nezha, what kind of fire is it?
In "The Romance of the Gods", Nezha himself will set fire, and it is clearly pointed out that it is "Samadhi True Fire". In the chapter "Nezha's Lotus Incarnation", because Li Jing burned Nezha's palace, Nezha chased and hit the entrance of Manjushri Guangfa Tianzun's cave, but Tianzun asked Jin Zha to take a flat crutch and shouted, "Fight for me!" ", beat Nezha to the point of "Samadhi True Fire Seven Orifices Spraying Together".
The crutch is a cane-style weapon, not a pole
The term Samadhi True Fire is a combination of Buddhism and Taoism. Samadhi is a Buddhist term for the heart, kidneys, and bladder, while true fire is the qi in the human body. Originally just a concept of self-cultivation, novels such as "Journey to the West" and "Romance of the Gods" gradually became popular in ancient times, giving them the ability to incinerate foreign objects.
Let's watch "Nezha's Demon Boy in the Sea" again, Nezha has no feeling for the Tianyuan Ding furnace fire, as Ao Guang said, one person and one ding, the fire has the same origin, and it is all samadhi true fire.
Judging from the performance, Nezha's firepower can make a stone mountain disappear in an instant, and Tian Yuanding will refine the monster into a wisp of qi and float away, and the fire temperature will not be lower than the evaporation point of basalt. The temperature of basalt magma is usually 900 to 1200°C, and it can reach up to 1300°C, and the temperature of the Samadhi True Fire should be much higher than that.
Tian Yuanding "Nezha's Demon Boy in the Sea"
But this presents a loophole: Nezha's fire and Dinghuo are both red. There is a direct correlation between the temperature and color of the flame, with red flames often below 1000°C, while flames above 1300°C turn white or even blue.
Nezha's samadhi true fire actually violated the law of blackbody radiation, and our scientific discussion seems to have come to an end.
The color of the flame at different temperatures丨cityfire
Don't worry, there is another explanation.
The color of an ordinary flame is determined by temperature, and we have another flame that is not ordinary: high-temperature plasma. Plasma flames (e.g., arcs, lightning) depend not only on temperature, but also on the type of ion, energy level transition, etc. This means that even if the plasma flame temperature is extremely high, it may not be blue, but the emission spectrum determines what color it is.
ICP-MS 的等离子火焰丨多伦多大学
As long as Nezha uses a spell to control the transition energy level of the electrons, or adds C₂ (carbon dimer) or CN (cyanide molecule) when setting fire, he can create a high-temperature plasma flame while keeping it red.
In this way, maybe there are two "College Physics" and "College Chemistry" in Xiuxian's textbooks?
If you use physics to analyze Ao Bing......
When Ao Bing, who was dressed in Nezha's skin, fought with Leopard Daddy Shen Zhengdao, Leopard Daddy showed his powerful combat power in the water, using lightning spells, which could come and go in the water invisibly and as fast as lightning. So Ao Bing froze the river and defeated him with his physical knowledge that "ice does not conduct electricity".
Stills from "Nezha's Demon Boy in the Sea".
You see, Physics is here again.
Whether a substance conducts electricity or not generally depends on the presence or absence of electrons or ions that can move freely. If the water is very pure, with only water molecules tied together and no impurities, then it will hardly conduct electricity.
However, in reality, some impurities are often dissolved in water, and various ions in it can move freely, which will make the water weakly conductive. For example, in tap water, there will be calcium and magnesium ions. There will be no shortage of impurities in the river where Ao Bing and Shen Zhengdao fought, and it naturally has a weak electrical conductivity.
真实世界中的闪电劈在海面上丨 Zoltan Tasi/Unsplash
After the water is frozen into solid ice, the water molecules and impurity ions in it are also "frozen" to death, and it is more difficult to move, so it becomes more and more non-conductive, and the conductivity may be millions of times different from that of liquid water. In the movie, it is said that water can conduct electricity, but ice cannot conduct electricity, which has scientific truth.
Having said that, Shin Jeong-do in the movie does not use ordinary electricity, but resembles lightning, which makes the duel full of variables.
At very high voltages, the molecular structure of many insulators changes and becomes conductive, a phenomenon called electrical breakdown. Lightning is a phenomenon of air breakdown: when the charge in the air continues to accumulate and the voltage rises to a certain level, the originally insulated air is broken down, and a huge current can pass through in a very short time.
In the same way, an insulator like ice cannot be "split" into a conductive channel. If Daddy Leopard is a little stronger, and the voltage released is strong enough, maybe he will be able to make the current break through the ice and win the battle!
Planning and production
来源丨果壳（ID：Guokr42）
Author丨Pondering Black Jio's sister
Editor-in-charge丨Yinuo
Reviewer丨Xu Lai, Lin Lin
Source: Popular Science China WeChat account