Omnipotent Data

"These two people are my suspicion. According to criminal behavior, the probability that this middle-aged man is the robber is as high as 80%! His briefcase may not contain any documents. Rather, money spent in vain!" Bai Yan said after a few pauses as he looked at the crowd.

　　 "Then what, detective Bai, can I ask a question?" Cheng Nuo raised his hand and said.

　　 "Okay, you say." The corners of Bai Yan's mouth showed a slight confidence.

　　 He still doesn't believe that a problem raised by a high school student will not be solved by himself!

　　 "Well, I just want to say, the middle-aged man in the photo, the index finger of his right hand, is one short." Cheng Nuo pointed out Bai Yan's mistake in a very "kindly" way.

　　 Bai Yan was taken aback. He turned his head and stared carefully at the right hand of the middle-aged man with a briefcase in the photo.

　　 Sure enough, because the monitoring screen was a little fuzzy, Bai Yan was not paid attention to this point carefully.

　　 Staring carefully now, you can indeed see that the middle-aged man's right index finger is missing one section.

　　 In the photo of the robber, the index finger of the robber's right hand is completely normal. There is no missing section.

　　 Bai Yan: "..."

　　 Bai Yan glanced at Cheng Nuo speechlessly.

　　 This kid... how did he discover this?

　　 He almost found this detail by putting his face on the photo.

　　 And the distance between Chengnuo Station and the photo is at least three or four meters!

　　 What Bai Yan didn't know was that Cheng Nuo's data ability, as long as it was within his line of sight, no matter whether he could see clearly, the data could appear in Cheng Nuo's eyes.

　　 And Cheng Nuo was just when collecting the data of the middle-aged man in the photo, and found that the length of his right index finger was abnormal, only 2.11 cm! Only then did it infer that the man's finger was missing a section.

　　 Bai Yan, who was dismantled by Cheng Nuo, looked a little embarrassed now.

　　 In the last second, he made a promise that the middle-aged man was one of the robbers, and in the next second he was slapped in the face by Cheng Nuo's casual words.

　　 This face-slapped... Don't be too fast!

　　 Facing the slightly suspicious gazes of Captain Yang and Jiang Lan, Bai Yan coughed to hide his embarrassment. Then he took a deep breath and calmed down the feeling of beating. Pointing to the photo of the second robber and said.

　　 "Let me talk about the second robber below. I found three suspects with similar physical features to this robber." Speaking of the robber, Bai Yan obviously seemed more confident. "These three people were selected from thousands of people. I am 100% sure. Among these three people, there is the robber we want to find."

　　唰—!

　　 Suddenly, when Bai Yan finished standing up, Cheng Nuo slowly raised his hand.

　　 Bai Yan's face became stiff, and he tried to make his tone calmer, "Cheng Nuo, do you have any questions again?"

　　 "Oh, I have a little question." Cheng Nuo smiled, walked to the white board and took down the photo of the second robber.

　　 Then, he said without any haste, "Detective Bai, I found a problem. The arm lengths of the suspects you found are different from those of the robbers."

　　 "Oh?" Captain Yang on the side was interested. "Little brother, how did you see it?"

　　 Although the size of the two photos is the same, the proportion of people in the photo to the entire photo is different.

　　 is like the same person, a photo taken at close range and a photo taken at a distance. The size of the picture is the same, but the proportion of the person in the picture is different.

　　 This is why it is impossible to compare two different photos with different proportions of people. Bai Yan can only estimate a rough value.

　　 Facing Captain Yang’s question, Cheng Nuo shook his head and smiled, “Captain Yang, someone can’t do it, and I can’t do it.”

　　 A certain Mr. Bai Yan who did not want to be named turned black.

　　 "Do you know what my nickname is?" Cheng Nuo glanced at Captain Yang and said.

　　 "What is it?" Captain Yang was very cooperative with Cheng Nuo's pretense this time.

　　 "Famous detective Edogawa? Nonan!"

　　Edogawa...Nolan? Ah bah, Nonan!

　　 Captain Yang looked dumbfounded!

　　 Bai Yan hugged his arms and silently looked at Cheng Nuo, who had already begun to act.

　　 show! Please keep showing!

　　 I will look at your show with the second battalion commander’s Italian cannon!

　　 Cheng Nuo went through the data in his mind, took the photo with the robber No. 2 and spoke.

"Only based on the photo, we definitely can't know the height of the robber and what his arm length is. But we can see this." Cheng Nuo pointed to the floor tiles on the floor of the bank in the photo and said, "Floor tiles in the bank The specification is 300*400mm, that is, the length of the porcelain tiles is 40 cm and the width is 30 cm!"

　　 "The number of floor tiles covered by the robber's shadow is 3.54. Then the length of his shadow is 141.60 cm!"

　　 "The Minjiang Road Sub-branch of Qingcheng Bank is located at 120.3354 degrees east longitude and 36.0748 degrees north latitude. The time is 7:05 in the morning, and the solar insolation angle at this time is 32.14 degrees."

　　 "Calculating with the above data, we can conclude that the height of the robber is 178.28 cm! According to the ratio, the robber's arm length is 0.3397 of his height, and his arm length is 60.57 cm!"

　　 Cheng Nuo let out a sigh of relief, and pointed to the three suspects Bai Yan had found.

　　 "Let’s talk about the length of this person’s arm!"

　　 Cheng Nuo pointed to the street light pole next to the person in the photo and said ~www.readwn.com~ Generally speaking, these street light poles have uniform specifications. Therefore, the height of the street light pole can be determined, which is 8.00 meters! Because the camera, the suspect, the street lamp, and the three objects are not in the same plane. Therefore, the height of the street lamp needs to be calculated by the angle. The angle between the street lamp and the camera is... After calculating the above data, it can be concluded that the suspect's arm length is 58.35 cm! The difference of two centimeters is still quite big. So exclude! "

　　 "Okay, let's talk about the second suspect identified by Police Officer Bai. We use the briefcase in his hand as a reference. The size of the briefcase is 16 inches, which is 53.33 cm, and then..."

　　 Cheng Nuo was in front of the whiteboard, eloquent, and analyzed the arm lengths of several people in the photos.

　　 As everyone knows, the three of Bai Yan have long been dumbfounded!

　　 Jianglan needless to say, as Cheng Nuo's mother, watching Cheng Nuo crackling in front of the whiteboard and talking about a lot of numbers that she didn't understand at all, she was shocked and a little bit relieved.

　　Look at how good my precious son is, he is even more professional than the two policemen!

　　 Bai Yan stood there blankly, with turbulent waves rolling in his heart. For a while, I didn't know what to say.

　　 It would be nice if Cheng Nuo's long list of data was just nonsense. But the point is...the data is really well-founded.

　　 For a time, Bai Yan felt a little suspicious of life!

　　 Myself... is not even better than a high school student? !

alright, you win!

　　 You don’t need to buy oranges for me, and the orange trees don’t need you to move all the way. Because... the orange came here by himself!

　　…………

　　 Call friends and call friends for recommendation! !