Is it useful to stick the word “米” on the window during a typhoon?
Typhoon Bebejia, the 13th typhoon this year, is expected to make landfall in the area from Shanghai Pudong to Zhoushan, Zhejiang in the early morning to morning of the 16th.
During the typhoon in Hainan, many windows of buildings were damaged. There was a discussion online about whether to put a rice character on the windows during a typhoon. Some netizens wondered why putting a rice character on the windows would have a preventive effect? What kind of tape should be used? How to put it on? What should I do if I don’t have any tape at home? With these questions, the reporter interviewed experts in the field of materials science.
Gao Liang, associate professor at the School of Materials Science and Engineering at East China University of Science and Technology, told reporters that when the vibration frequency of the glass caused by high wind speed is close to the inherent vibration frequency of the glass, resonance will occur, which may cause the glass to break. After the glass is affixed with cross-shaped tape, its vibration frequency is changed, reducing the chance of glass breaking due to resonance.
On the other hand, the M-shaped tape improves the integrity of the glass. The tape can absorb some of the impact force, and even if the glass breaks due to resonance or floating objects outside the window, the glass fragments can still be connected together by the tape instead of scattering.
Gao Liang reminded that if citizens use tape to stick glass during typhoons, they can choose tape with a certain thickness and elasticity, use diagonal cross or "M" shape sticking method, and the tape can be stuck outside the window frame. If there is no tape at home, you can soak paper or newspaper and stick it on the glass, which also has a certain effect.
Some netizens also asked whether it is necessary to put rice paper tape on the windows of cars parked outdoors when a typhoon comes. In this regard, Gao Liang reminded that when the wind speed is high, the vibration frequency and amplitude of car windows are smaller than those of residential building windows, so putting rice paper tape on residents' cars will not be of much use.
