“Oh~~”
Megure Jusan suddenly realized:
"So this is why you said before, Brother Sakaki, that even the prisoner himself doesn't know when the lock will break!"
"That's right."
Sakaki Makoto nodded:
"Even if cold brittleness occurs, a lock is still a lock."
"It may break, it may not break, but..."
"The criminal can make as many mistakes as he wants, but Captain Haneda only needs to make one mistake and he will die!"
"If I'm not mistaken..."
"You must have stored liquid nitrogen somewhere else to ensure you could kill Captain Haneda!"
Conan and Hattori Heiji, who had remained silent the entire time, took a deep breath.
That's right...
This was indeed a perfect kill.
If Nishijo had been more cautious, he would have had a chance to dispose of the stored liquid nitrogen. By then...
Any evidence or clues will disappear without a trace.
It's impossible to solve the case!
Who would have thought...
Can you kill someone perfectly using only liquid nitrogen?
Just as Makoto Sakaki said, the liquid nitrogen killing technique can only be successful in specific professions and at specific times.
Sunshine Circus...
It is exactly in this list.
"That's not right..."
After hesitating for a while, Takagi Wataru, who likes to ask questions, began to shine:
“There’s a loophole!”
"Metal cooled by liquid nitrogen should be different from other locks!"
“It’s definitely different.”
Pursing his lips, Sakaki Makoto said:
"Here, please ask my assistant, Huiyuan Ai, to answer your questions."
Miss Miyano turned aside and was stunned for a moment outside the door.
Until Takagi Wataru cast a hopeful and studious look at me...
She finally reacted, glared at her boyfriend in dissatisfaction, and raised her head proudly.
This little bit of knowledge doesn't bother her at all!
"As Cheng just said, the toughness of most metals is affected by temperature. This is because the crystal structure of the metal changes due to temperature. It is related to the smelting level and material type. It is also called the ductile-brittle transition temperature."
Miss Miyano threw scientific theories directly at Takagi Wataru, not caring whether he could understand them or not:
"When we talk about most metals here, we usually refer to body-centered cubic metals, which are chromium, tungsten, alpha iron, etc."
"But some metals are less affected by external temperature, usually face-centered cubic metals, such as aluminum, copper, gold, silver, gamma iron, etc."
"Akito sack!"
Takagi Wataru was confused:
"Alpha iron and gamma iron... aren't they both iron?"
"They are indeed iron atoms, but at different temperatures, the crystal structure of the iron atoms is different."
Glancing at him, Miss Miyano obviously had never taught such a stupid student before, and said with some displeasure:
"Pure iron below 912°C has iron atoms arranged in a body-centered cubic lattice, which is called alpha iron."
"Between 912°C and 1394°C, iron atoms are arranged in a face-centered cubic lattice, called gamma iron."
"When the temperature exceeds 1394°C, the iron atoms will rearrange into a body-centered cubic lattice, called delta iron..."
"Officer Takagi, you still need to study more."
"oh..."
His old face turned red, and Takagi Shige said hesitantly:
"I'm still learning..."
"What does this have to do with metal being cooled by liquid nitrogen?"
"fool!"
Miss Miyano held her forehead and sighed:
"Didn't you understand anything about the three temperatures I just mentioned?"
Takagi Wataru shook his head blankly.
It goes in one ear and out the other. He can't draw inferences from what he hears.
"well..."
Miss Miyano suddenly understood why Sakaki Makoto always looked exhausted after solving a case.
This teammate...
How thick a thigh must be to carry it!
"Don't the three examples I listed prove that the crystal structure of steel can move and change according to temperature?"
She said with great regret:
"The crystal structure transformation is reversible, reversible, reversible!!!"
"If you can't even think of this, what kind of criminal police officer are you?"
"The prisoner is almost dying of laughter!"
I don't know why...
After being scolded by Miss Miyano...
All the police officers, including Takagi Wataru, lowered their heads in shame.
They had never expected this.
A genius is a genius. Others would just take notes when they heard this, but Miss Miyano could instantly associate the crystal structure with changes in temperature....
With such intelligence, it is more than enough to develop APTX4869.
Using the thinking of a genius to figure out "mortals" will inevitably lead to disappointment.
but...
As if he had suddenly realized something, after being scolded, Takagi Shigeru completely opened up his Ren and Du meridians, turning into a little genius:
"I see!"
"Because the crystal structure of steel is reversible, as long as the lock that has been soaked in liquid nitrogen returns to normal temperature, no trace will be left!"
"It's summer now, and the temperature indoors and outdoors can reach 36 degrees Celsius. By the time the police arrive at the scene, the last clue will be gone!"
"This is a great move!"
Megure Jusan: “….”
"Takagi, are you fucking out of your mind?!"
"Why are you praising the prisoner?!"
"Memu Police Department..."
As if he had become a different person, Takagi Shige patted his boss on the shoulder twice and said earnestly:
"It's not important..."
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