Qingdao Qiuyunfeng Scar Correction Specialty Hospital http://www.qiuyunfeng.com Keywords: scar repair, scar hospital, keloid, scar-prone constitution Contact Information: 13791808612 Online Exchange: Scar Repair QQ Group 1, Scar Repair Group ① (187598289); Scar Repair Group ② (43489967); Scar Repair Group ③ (91182807); Acne, Pimples (187599022); Scar Repair Group ⑤ (187948057); Scar Repair Group ⑥ (187948805) Event: A child's hand was injured by a 1-yuan coin explosion. Yesterday morning at around 11 o'clock, I met Ms. Wang, the mother of the child Xiao Fei (pseudonym), at the kindergarten gate. Ms. Wang told reporters that at about 6 PM on the previous day, she picked up Xiao Fei from the kindergarten, and each of his hands held a 1-yuan coin. The coins were given to him by her in the morning. "At that time, I parked my electric scooter at the kindergarten gate, with the child’s feet on the ground and his body leaning on the scooter. Suddenly, I heard a 'boom' sound, and the child immediately started crying. His right thumb and index finger turned black and blisters appeared." Ms. Wang said that both coins fell beside the scooter; one was intact while the other was burned black with small notches and felt very hot to the touch. Strange: The coin was also melted. Ms. Wang showed the reporter the burned coin, which had a melted notch about 1 cm long, arc-shaped, as if it had been welded by an electric welder. An eyewitness said that the coin was indeed very hot. The doctor at the clinic where Xiao Fei was treated said that Xiao Fei's fingers were clearly burnt. Yesterday morning, Ms. Wang tried to let Xiao Fei hold the coin again, but he refused and said he was afraid. Ms. Wang said that fortunately, Xiao Fei's finger injuries were not very serious. He has recovered more than half and should be fully healed in a few days. Expert: Power Short Circuit “Exploded” the Coin In the afternoon of the same day, a staff member of the People's Bank of China Zhengzhou Central Branch stated that the 1-yuan coin that burned Xiao Fei's fingers was not counterfeit. The material of the 1-yuan coin is steel core nickel-plated, with a melting point above 1400℃. It is absolutely impossible for the coin itself to explode, and ordinary fire cannot melt the coin like this. The staff member said that similar "coin explosion" incidents have occurred before, and there were always electrified motorcycles or electric scooters at the scene. He believed that the problem of the "coin explosion incident" lies in the electric scooter, probably because Xiao Fei accidentally touched the socket or other electrified parts of the scooter, causing a power short circuit. This produced an electric arc emitting high heat, melting the coin and burning Xiao Fei's hand. Link: "Coin Explosion" once prompted expert investigations. Reporters also learned that in January 2007, a "coin explosion incident" occurred in Qian Shi Village, Oubei Town, Yongjia County, Wenzhou. After expert investigation, it was found that there was an electric motorcycle where the coin exploded, and the charging socket of the vehicle had obvious burn marks. The experts took a 1-yuan coin and touched the socket, hearing a "boom" sound, and a string of sparks appeared. The edge of the coin, which was electrocuted and fell to the ground, was melted, and its traces were almost identical to the originally "exploded" coin. The investigation team finally confirmed that this was the reason for the coin "explosion". The electric arc generated by the power short circuit has extremely high thermal energy, which can instantly melt the coin.