Is it reliable to use mobile phone software to repel mosquitoes?
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Another summer is here, bringing with it scorching heat but also more troubles. For example, mosquito bites often prevent people from falling asleep. As a result, many "coping methods" have begun to emerge. For example, the popular mobile phone electronic mosquito repellent is very popular. It is trendy and does not require any other costs. It seems to be much more cost-effective than lighting mosquito coils. However, is this method of using software to repel mosquitoes really effective? First of all, let's understand the principle of electronic mosquito repellent. The developer of "mobile mosquito repellent software" gave two main principles of "mosquito repellent": The first method is that according to long-term research by zoologists, female mosquitoes need to supplement nutrition within a week after mating in order to successfully ovulate and give birth, which means that female mosquitoes will only bite people to suck blood after they are pregnant . During this period, female mosquitoes can no longer mate with male mosquitoes, otherwise it will affect production and even endanger their lives. At this time, female mosquitoes will try their best to avoid male mosquitoes. Some ultrasonic mosquito repellents will simulate the sound waves of various male mosquito wing vibrations. When the blood-sucking female mosquitoes hear the above sound waves, they will immediately flee, thereby achieving the effect of repelling mosquitoes. There is also a kind of mosquito repellent software that simulates the ultrasonic sound of bats, because "bats are the natural enemies of mosquitoes. It is generally believed that mosquitoes can identify and avoid the ultrasonic sound emitted by bats. Let's explain them one by one. First of all, there is no scientific basis for avoiding mating . After the mosquitoes break out of the pupa, they often form a large group of male mosquitoes, and female mosquitoes will be attracted by the sound of the wings of a large group of male mosquitoes, and then enter the group to find a mate. This is a bit like an inverted version of "If You Are the One". This behavior is innate. Female mosquitoes will not refuse this temptation just because they are pregnant, because the female reproductive organs of all insects, including mosquitoes, have a structure called spermatheca . Usually, the sperm stored in the spermatheca after a normal mating is enough for their lifetime, but why do female mosquitoes still enjoy it? This means that female mosquitoes are not simply for fertilization, but... cough cough, so female mosquitoes will not refuse multiple matings at all. Let's talk about another point, that is auditory perception. Indeed, mosquitoes have hearing. For example, the male mosquitoes have two auditory "antennas" with fine hairs like a feather duster in front of their heads that can sense sound wave vibrations. Female mosquitoes do not have such "antennas". This method can be used to identify the gender of mosquitoes. Female mosquitoes use special sensors to find their prey. They are very sensitive to carbon dioxide, heat and sweat, so they can find warm-blooded mammals and birds to bite within a certain distance. However, when it comes to auditory perception, it only works on male mosquitoes. The actual situation is that the hearing of male mosquitoes is much stronger than that of female mosquitoes, and male mosquitoes do not suck blood. The main sensory organs of female mosquitoes that suck blood are very sensitive to temperature and smell . Putting aside the issue of whether they suck blood, the reason why the male mosquitoes' auditory organs are sensitive is to sense the 250 to 600 Hz sound emitted by the vibration of the female mosquitoes' wings, which is very, very far from ultrasonic waves. First, the auditory organs are not sensitive, and second, they cannot hear ultrasonic waves at all. The so-called ultrasonic mosquito repellent is naturally not valid. Do you want to rely on the male mosquitoes that dare to leave and let the male mosquitoes that go away attract the female mosquitoes? Isn't this logic a bit too sloppy? Therefore, software mosquito repellent cannot actually stand up in reality. In fact, no. Speaking of software, let's talk about electronic mosquito repellents. This kind of thing has appeared in the Western market for decades. During this period, it has been questioned constantly, and most of the mosquito repellents have not been able to pass scientific tests. Can it be so effective just by mobile phone simulation? Assuming that ultrasonic mosquito repellent is true, it is also a fantasy for mobile phone software to use the frequency emitted by the mobile phone loudspeaker to reach the level of ultrasonic waves. The hearing range of the human ear is generally between 20Hz-20000Hz. Not to mention mobile phones, even high-end audio equipment can rarely break through the hearing limit of the human ear. The ultrasonic waves emitted by bats are all above 40000Hz, far beyond the capabilities of mobile phone loudspeakers and ordinary home speakers. So even if the previous theory is true, it is completely impossible to use a mobile phone to repel mosquitoes.As a winner of Toutiao's Qingyun Plan and Baijiahao's Bai+ Plan, the 2019 Baidu Digital Author of the Year, the Baijiahao's Most Popular Author in the Technology Field, the 2019 Sogou Technology and Culture Author, and the 2021 Baijiahao Quarterly Influential Creator, he has won many awards, including the 2013 Sohu Best Industry Media Person, the 2015 China New Media Entrepreneurship Competition Beijing Third Place, the 2015 Guangmang Experience Award, the 2015 China New Media Entrepreneurship Competition Finals Third Place, and the 2018 Baidu Dynamic Annual Powerful Celebrity. |
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