Chapter 953 Physics Experiments Can Also Kill People
The rain outside stopped, and at Yuya's request, everyone went back to the mobile toilet where the body was found.
Two police officers were wearing wellies and there was water all around the toilet.
Shancuncao asked unhappily, "Why is there so much water here?"
One of the officers replied, "We blocked the drain with a towel as requested by Detective Kamiya."
Everyone suddenly realized that this area was lower than other places because the ground level had sunk. If the drainage outlet was blocked and it had just rained, it would be easy for water to accumulate.
Shancun Cao took off his shoes, waded to the portable toilet, looked around and complained: "But isn't this destroying the important crime scene?"
The police officer immediately replied: "The toilet where the body was found has been moved to another place for further investigation. This is another mobile toilet, which was also instructed by Detective Kamiya."
Yamamura Cao couldn't help but glance at Youya, thinking to himself, isn't this my subordinate? How come you use him so easily? It seems that he has done this many times at the crime scene.
But the more important thing now is to solve the case, so he asked: "So Detective Kamiya, what does your doing have to do with the case?"
"Of course," Youye nodded, "These are all necessary preparations to solve the murderer's murder method."
"A mechanism?" Shancuncao was stunned. He looked at the puddles under his feet and guessed, "Are they going to use this puddles? But even if they used an electric shock gun to make the victim unconscious, to make an adult male whose hands and feet were not trapped drown in a place like this, the murderer must be someone with very strong arms, right?"
He subconsciously looked at Kyogoku Makoto.
Suzuki Sonoko put her hands on her hips and said angrily, "I've already told you that Zhen can't be the murderer! How many times do I have to say it?"
She looked at Kyogoku Makoto: "Am I right?"
Kyogoku Makoto didn't answer, but frowned, turned around and ran away.
"Ah Zhen, where are you going?"
"Ah! The murderer escaped!" Shancuncao shouted anxiously and instinctively wanted to chase after him.
Youya stopped him, "Let him go, he probably wants to go to the bathroom or something, and this case has nothing to do with him."
Yuya made up an excuse, and he could probably guess what Kyogoku Makoto was going to do when he suddenly ran away.
"Is that so? Okay then." Yamamura Cao didn't think too much about it. Kyogoku Makoto already had an alibi, and his actions just now were just out of police instinct.
Can any policeman resist chasing after someone if he sees him running away?
I just couldn't help it.
Shancun Cao asked in confusion: "If the murderer was not a karate master with strong arm strength, how did he manage to drown an adult male whose hands and feet were not bound?"
Yuya said slowly: "That's because the murderer set up a mechanism here. This mechanism does not require arm strength. The murderer locked the victim in the toilet and drowned the person in the toilet without any contact."
"It's like magic."
When hearing the word magic, Sera Masumi's expression changed slightly, and she couldn't help but secretly glance at Conan.
The latter stood beside Mao Lilan with a well-behaved look on her face, as if she was listening attentively.
Everyone was silent, some doubting whether magic was too unscientific. However, considering Yuya's reputation, no one questioned it.
"No matter how much you say, it's better to see it with your own eyes. Let's actually try it out and see if it's really possible to drown someone in the toilet."
"Then I'll ask Officer Yamamura to play the victim."
Officer Shancuncao pointed at himself and was shocked: "Eh, me?"
Yuya smiled and said, "Don't be afraid, I have prepared a portable oxygen tank for you."
A police officer handed an oxygen tank to Shancun Cao, who looked a little unhappy. Is it true that there will be no accidents in this experiment?
Yuya folded his arms across his chest, leaned against the car and said, "Let's get started without further delay."
"First, put the victim in the toilet..."
Shancuncao opened the toilet door, went in and sat on the toilet.
"Next, use tape to seal the vent behind the toilet..."
A police officer stepped forward, stood on tiptoe and sealed the vent tightly with tape.
"Next, prepare four more cans of kerosene, light the cloth on them, and place the cans on the shelf inside the toilet."
"Finally, close the door and seal the gaps around it with tape."
The police officer followed Yuya's instructions and did everything.
Suzuki Sonoko watched this scene and couldn't help but question: "Can this really drown someone? Suffocation is more like death, right?"
Mao Lilan also looked confused.
However, Miyano Shiho looked at the vent submerged in water under the toilet door with a thoughtful expression.
Yuya smiled slightly: "Don't worry, the answer will be revealed soon."
Everyone waited quietly, but nothing special happened for a long time, except for the gurgling sound coming from the vent under the toilet door from time to time.
Just when Suzuki Sonoko couldn't help but ask again, there was a sudden bang bang bang sound and the toilet door was knocked hard from inside.
Everyone was startled: "What's wrong, what's wrong, what happened in there?"
Yuya rolled up his trouser legs, walked over and tore off the tape on the door, then grabbed the handle with his hand, as if he was a magician who revealed the result, and said with a smile: "Then, please witness the moment of miracle!"
He pulled the toilet door open with force, and the next second, a large amount of water rushed out of the toilet with a splash. Shancun Cao was standing on the toilet, gasping for breath with a look of fear on his face, as if he had just walked through the gates of hell.
Youya was well prepared and moved to the side of the toilet in advance so he was not flushed by the water.
When everyone saw this scene, they were stunned.
Judging from the amount of water flushed out, it is probably enough to fill the entire toilet.
Yamamura Cao rushed out of the toilet and yelled at Yuya: "Detective Kamiya, are you kidding me? Why did you ask me to do this? I almost died in there just now!"
Youya pointed to the oxygen tank in his hand: "So I prepared an oxygen tank for you in advance. It will be fine. Just think of it as a diving experience."
Mao Lilan couldn't help but ask: "But why is there so much water in the toilet?"
Just as Yuya was about to explain, Miyano Shiho spoke up first: "I see, so it's using the pressure difference."
Mao Lilan: "Hey, Mio-chan, did you figure it out?"
Miyano Shiho looked at Yuya, who smiled and nodded, so she said, "When kerosene burns in a closed toilet, it consumes all the oxygen. Although the volume of the generated carbon dioxide will not decrease, after the kerosene is extinguished, the temperature drops, and the gas in the toilet cools and contracts. According to the principle of thermal expansion and contraction, the volume of the gas will decrease."
"When the volume of gas in the toilet decreases, the pressure inside will be lower than the atmospheric pressure outside, and the large amount of water accumulated under the toilet door will be pressed into the toilet under the atmospheric pressure difference."
Mao Lilan and Suzuki Sonoko showed admiring expressions: "Mio-chan, you are so awesome!"
Miyano Shiho smiled a little embarrassedly: "This is actually the same principle as the candle water absorption experiment we did."
Mao Lilan and Suzuki Sonoko also remembered this experiment, and suddenly realized that it was such a simple principle?