Chapter 169
The advertisement for the bamboo spear (Naginata) has been talked about, but the advertisement for the Kamikaze corps will be posted next. Even now, when the event is desperate, the fact that it is not discussed as a cancellation indicates a significant lack of crisis management capabilities in Japan. Climbers know that it's easy to climb in mild weather, but in a snow storm it's like dying. As described in Chapter 165, complete control of athletes, referees, coaches, managers, tournament management staff, services, supply providers, etc. is difficult even without terrorism. There is a way to prevent bombs and cutlery with a metal detector, but with viruses that are flooding the city now, even the infection route cannot be identified. If they are still unaware of the difficulty during this period, it is sure that it should not be held. If the vaccine supply is in this state, it is doubtful how thorough the measures against terrorism are, but it can be said that it is in a state of death that cannot be judged properly. It is also worrisome that the world situation is extremely unstable. Conflicts between the United States and China surfaced, military clashes in the Middle East intensified, and Russia was not allowed to participate in the Olympics. Stock prices, which have continued to soar, are also in jeopardy. By inactivating viruses and bacteria and utilizing the deep UV LEDs that are also used in the International Space Station, it may have been possible to hold the Olympics without restricting the movement of people and without significantly restricting economic activities. However, even if we offer to provide it free of charge, if there is no response, there is nothing we can do about it. It seems that the installation of ionizer-type air purifiers such as Plasma Ion and Nano-e is being considered in the corona countermeasure materials in the Ministry of Land, Infrastructure, Transport and Tourism, but our test data shows that ozone with a concentration that does not harm the human body could not inactivate the viruses. On the other hand, the inactivation of bacteria and viruses by ultraviolet light began in 1887 with research by Downes et al. in sunlight, and since then, there are abundant research papers and empirical data on all bacteria and viruses. The mechanism of sterilization is that DNA and RNA proteins have a maximum absorption band around a wavelength of 254 nm, and when exposed to light, the proteins absorb light and change in quality, and proliferation stops. The convenience of light is that the light illuminance is inversely proportional to the square of the distance, so the effect on the human body can be controlled. It can be inactivated by substances such as alcohol, ozone, and chlorine that have a certain concentration or higher, but it is difficult to control the concentration without affecting the human body. As the US Centers for Disease Control and Prevention (CDC) warned, spraying hypochlorite water was ineffective. That's because spraying reduces the chlorine concentration by a factor of 100 to 1000. Similarly, the contact time with the virus is too short in the air, so it does not become inactivated. In this pandemic, many piggybacking products with little scientific basis were on the market, and all of them seemed to be equally suspicious. Some products that apply the light of ultraviolet LEDs, which are sung for medical institutions, are not effective because the light energy (illuminance x time) required for inactivation is insufficient. Therefore, in the future, for the development of the home appliance industry, it is necessary to establish a third-party appraisal agency to verify and certify the performance. In world history, it seems that a once prosperous country will not prosper again, but the cancellation of the Olympics will expose Japan's awkward situation to the world, and by embarrassing it, the people who have been watered down after the bubble economy will be ignited. Its appearance may be handed down to posterity as a miraculous reconstruction and it may become the best legacy.
UV-C LED Shower Box
