Qingdao Qiuyunfeng Scar Correction Specialized 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, acne scars, pimples (187599022); Scar Repair Group ⑤ (187948057); Scar Repair Group ⑥ (187948805). Incident: A one-yuan coin explosion injures a child's hand. Yesterday morning at around 11 o'clock, I met Ms. Wang, the mother of the child Xiao Fei (a 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 was holding a one-yuan coin, which she had given him in the morning. "At that time, I parked my electric bike at the kindergarten gate, with the child's feet on the ground and his body leaning against the bike. Suddenly, I heard a 'bang' sound, and the child started crying immediately. The thumb and index finger of the child's right hand turned black and blisters formed." Ms. Wang said that both coins fell beside the electric bike, one remained intact while the other was burnt black with small notches and was extremely hot to the touch. Strange: The coin was also melted. Ms. Wang showed the reporters the burnt coin, with a缺口缺口about 1 cm long and arc-shaped, as if it had been welded by an electric welder. An eyewitness said that the coin was indeed very hot. A doctor at the clinic where Xiao Fei was treated said that Xiao Fei's fingers were clearly burned. Yesterday morning, Ms. Wang tried letting 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 and have recovered by more than half. He 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 one-yuan coin that injured Xiao Fei's fingers was not counterfeit. The material of the one-yuan coin is steel core plated with nickel, with a melting point above 1400℃. It is absolutely impossible for the coin itself to explode, and ordinary open flames could not melt the coin like this. The staff member said that such incidents of "coin explosions" have happened before, and there were always motorcycles or electric bikes involved that were electrified. He believed that the problem of the "coin explosion" incident lay in the electric bike. It was likely that Xiao Fei accidentally touched the socket or other electrified parts of the electric bike, causing a power short circuit, generating an electric arc with high thermal energy, melting the coin and burning Xiao Fei's hand. Link: "Coin explosion" has caused expert investigations. Reporters also learned that in January 2007, a "coin explosion incident" occurred in Qianshi Village, Oubei Town, Yongjia County, Wenzhou. After investigation by experts, it was found that there was an electric motorcycle at the place where the coin exploded, and the charging socket of the vehicle had obvious burn marks. The experts took a one-yuan coin and touched the socket, and with a "bang" sound, a string of sparks appeared. The coin that was electrocuted and fell to the ground had its edges melted, and the traces were almost identical to those of 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 possessed immense thermal energy, capable of instantly melting the coin.