Dongdu railway headquarters, several public security cars stopped here. Mumu public security officer walked into the headquarters with public security officer bainiao, Miyako Sato and other public security officers.


    They received a call from a mysterious man an hour ago, telling them that a bomb had been installed on the Dongdu ring line. Coupled with the previous call from Xiaozhi, the public security inspection hall was completely flustered.


    Once it really explodes, the public security side must have someone come forward to bear part of the responsibility, otherwise the anger of the masses can not be calmed down at all.


    "According to what you said, Sheriff mu, it seems that you can only keep the tram at a speed of more than 60 kilometers. Songnan, hurry up and inform the tram driver. Never let the tram speed be less than 60 kilometers. All platforms are cleared for me."


    After listening to what Mumu sheriff said, Minister Sakamoto of the railway headquarters immediately understood the seriousness of the matter, and then said to the commander in charge of railway operation.


    "I see." the commander called Songnan by Minister Sakamoto soon contacted the tram running on the railway track and asked them not to reduce the speed to less than 60 kilometers.


    "Ministry of public security, it''s no use sitting like this. Do you want to send a bomb disposal team to the track to find the bomb." looking at the bomb without a clue, Sheriff white bird frowned and said.


    "Well, white bird, the bomb disposal team will let you contact. At present, we only have the clues that brother Yumu said. Don''t rush to dismantle the bomb until you find it. Wait for my order."


    At dusk, the sheriff nodded. At present, this is the best way. It is already within the scope of dereliction of duty that the warehouse for sealing gunpowder in the public security inspection hall was stolen. Now the stolen bomb appears on the market again, which is definitely a blow to the public security side.


    "Sheriff mu, I''m here." just when Sheriff Mu had no clue, Xiao Zhi finally came here. After finding no trace of each other, Xiao Zhi came to the Ministry of railways. After all, things here also need to be solved.


    "Brother Yumu, how''s it going? Do you know where the bomb is?" seeing Xiaozhi coming, the magistrate asked hurriedly. Now he''s really afraid of anything.


    "Not yet. Please ask someone to take all the rail circuit diagrams of the Dongdu ring line. I think there will be some clues." Xiaozhi shook his head. He didn''t find out what the other party wanted to do.


    Judging from the situation in the afternoon, the other party obviously meant to provoke himself. Moreover, when he found that the first bomb did not explode, his tone was obviously lowered. Even if there was a sound transformer, Xiao Zhi could hear it clearly.


    So obviously, if the other party doesn''t want to blow himself up, there is something that needs to be blown up in the place where the bomb is placed.


    Soon, the staff of the Ministry of Railways came over with a super large railway route map. Xiaozhi looked at the route map and remembered the tips the other party had said before.


    "Once the speed of the tram is less than 60 kilometers per hour, it will explode. It is indeed possible in terms of the design and structure of the bomb, but it will explode if the bomb is not removed after sunset. This is a little difficult."


    Looking at the route map of the railway line, Xiao Zhi remembered the tips mentioned by the other party before. Xiao Zhi also had a general understanding of the weapons situation in the world. It is indeed possible to control the explosion of bombs at speed per hour.


    But the other party also said that before the sun sets, it will explode if the bomb is not removed. The other party especially mentioned the sun. If it is only a timing device, it is OK to directly say time. There is no need to say that the sun seems irrelevant.


    "Sensing device?" suddenly, Xiaozhi had a flash in his mind. Xiaozhi really didn''t see what the bomb designed by the other party was like. Just now his analysis was completely simulated based on his own prototype. Since he thought of using sensing device, the other party also had a high probability of using this technique.


    "I see. I finally found it." thinking of this, Xiao Zhi looked at the road map again and finally determined the other party''s method.


    "Brother Yumu, do you know where the other party''s bomb is?" after hearing Xiaozhi''s words, the magistrate Mumu immediately asked. Now he has no place to settle like an ant on a hot pot.


    "Ah ~ almost even I was cheated."


    "The bombs placed by the other party on the ring line should be between the railway tracks. Some sensing device should be installed on those bombs. They will explode without exposure to sunlight within a specific time."


    "So before that, the explosion maniac said that if the bomb was not removed before the sun set, the bomb would explode. When the tram on the ring line passed above the bomb, the sun would be completely blocked in the seconds when the tram passed completely, and the timer would start counting down."


    "The length of a car is 20 meters. All ten cars add up to 200 meters. If the speed is 60 kilometers per hour, it can be 16.7 meters per second."


    "After conversion, it takes almost 12 seconds for the whole tram to pass through the bomb. I think that guy set the induction countdown time on the bomb to about 13 or 15 seconds."


    "As long as the tram covers the sunlight shining on the bomb, the countdown will start. After passing, the countdown will initialize to more than ten seconds. The other party has completely set up a set, so now we just need to turn the tram on the ring line to other routes, and then send someone to find the bomb to be removed."


    "But pay attention, those bombs will explode if there is no sunlight, so we should do it as soon as possible." looking at the track diagram, Xiaozhi said his reasoning. At the beginning, he didn''t expect that the other party would take advantage of this rebellious psychology.


    Allowing the tram to run at a speed of 60 kilometers will start the countdown to the bomb, but if there is no Xiaozhi''s reasoning, the Mumu Sheriff will think that they must continue to let the tram run if they want the bomb not to explode, so this rebellious psychology is really a good means···


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