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Find WiFi Jammer Ensures Security
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In order to avoid thermal expansion and contraction in the gas station, the gas station will have a discharge port at the bottom. Some gas containing gasoline is released into the air near the gas station, so the smell of gasoline can be smelled near the gas station; Gasoline molecules and air molecules are closely bonded to form a mixed gas. When the gasoline molecules reach a certain concentration, they approach a very explosive limit; while the cellphone generates electromagnetic waves during use, especially when the cellphone receives and transmits or dials cellphone signals. When you make a phone call, the electromagnetic wave released for electric shock suddenly becomes more intense, which ionizes with the surrounding air and even creates sparks that detonate the mixed gas. Therefore playing with mobile phones is not possible inside the gas station. To ensure people's safety, the staff installed a wide range of signal jammers in the gas station.
Today, some netizens broke the news that "Wireless jammers are installed in the classrooms of the newly built teaching building of Chengdu Technical University." It's really hard work to stop students from playing cell phones in class.” Does the school block students' cell phone signals? This afternoon, a reporter from Chengdu Quanxu News Network came to the new teaching building in the east district of Chengdu University of Technology to inquire. A reporter from Chengdu Quanxu News Network found at the school that in an empty classroom in the school's second classroom building, there was an additional "black technology" instrument on the wall by the blackboard, and an automatic switch was attached to the instrument. This is the cell phone jammer dubbed by netizens who broke the news. In this empty classroom, the power cord is not connected to the signal jammer and the switch is not on. Therefore, the reporter's mobile phone signal is normal, and the network can be used normally.