The strongest penetrating power of radiation

New technologies are constantly being improved; they have long become a necessary attribute of modern life. Electromagnetic radiation surrounds a person almost constantly; he is under their influence at home, at work and even on the street. Technological advances, on the one hand, have made life more comfortable, but increasingly experts are talking about the dangers of electromagnetic waves emitted by numerous electrical appliances.

What is radiation

First, let's define what radiation is:

During the process of decay of a substance or its synthesis, the elements of the atom (protons, neutrons, electrons, photons) are released, in other words, we can say that these elements are emitted. Such radiation is called ionizing radiation or, more commonly, radioactive radiation, or even more simply, radiation . Ionizing radiation also includes x-rays and gamma radiation.

Radiation is the process of emission by matter of charged elementary particles, in the form of electrons, protons, neutrons, helium atoms or photons and muons. The type of radiation depends on which element is emitted.

Ionization is the process of producing positively or negatively charged ions or free electrons from neutrally charged atoms or molecules.

Radioactive (ionizing) radiation can be divided into several types, depending on the type of elements from which it consists. Different types of radiation are caused by different microparticles and therefore have different energetic effects on matter, different abilities to penetrate through it and, as a result, different biological effects of radiation.

Alpha, beta and neutron radiation are radiations consisting of various particles of atoms.

Gamma and X-rays are energy radiation.

The more expensive electronics are, the safer they are?

In theory, high-quality household appliances will be more harmless, since the larger and more “renowned” the manufacturer, the more he will care about his image and, accordingly, certify all his products as responsibly as possible. But this, of course, also affects the cost of the equipment.

However, it is worth considering that this only applies to new equipment that has not been subjected to physical impact, repairs, with proper operation, location, etc. If at least something has been disturbed, then the intensity of the radiation can change significantly.

Alpha radiation

• emitted: two protons and two neutrons
• penetration: low
• irradiation from source: up to 10 cm
• radiation speed: 20,000 km/s
• ionization: 30,000 ion pairs per 1 cm of travel
• biological effect of radiation: high

Alpha (α) radiation occurs from the decay of unstable isotopes

elements.

Alpha radiation is the emission of heavy, positively charged alpha particles, which are the nuclei of helium atoms (two neutrons and two protons). Alpha particles are emitted during the decay of more complex nuclei, for example, during the decay of atoms of uranium, radium, and thorium.

Alpha particles have a large mass and are emitted at a relatively low speed of an average of 20 thousand km/s, which is approximately 15 times less than the speed of light. Since alpha particles are very heavy, upon contact with a substance, the particles collide with the molecules of this substance, begin to interact with them, losing their energy, and therefore the penetrating ability of these particles is not great and even a simple sheet of paper can hold them back.

However, alpha particles carry a lot of energy and, when interacting with matter, cause significant ionization. And in the cells of a living organism, in addition to ionization, alpha radiation destroys tissue, leading to various damage to living cells.

Of all types of radiation, alpha radiation has the least penetrating power, but the consequences of irradiation of living tissues with this type of radiation are the most severe and significant compared to other types of radiation.

Exposure to alpha radiation can occur when radioactive elements enter the body, for example through air, water or food, or through cuts or wounds. Once in the body, these radioactive elements are carried through the bloodstream throughout the body, accumulate in tissues and organs, exerting a powerful energetic effect on them. Since some types of radioactive isotopes emitting alpha radiation have a long lifespan, when they enter the body, they can cause serious changes in cells and lead to tissue degeneration and mutations.

Radioactive isotopes are actually not eliminated from the body on their own, so once they get inside the body, they will irradiate the tissues from the inside for many years until they lead to serious changes. The human body is not able to neutralize, process, assimilate or utilize most radioactive isotopes that enter the body.

Video: the truth behind the cactus from radiation

Nowadays, almost everyone has a computer - a personal computer (PC) or a laptop. With the development of the Internet and social networks, people began to spend more and more time on computers. Most workplaces also have a PC in their arsenal. For a modern person, a computer is a part of life. People already spend more time watching them than watching TV. All this, on the one hand, makes our life easier and brings its own entertainment. On the other hand, these are harmful electromagnetic radiation from the computer, noise and vibration. Few people have thought about this, but it is still a fact.

Noise is created by moving elements - coolers, hard drives and drive. Of course, these are small values ​​in decibels, but they are constant. quite small and easily removed in one of three ways:

Computer repair (lubrication or replacement of components);

Working at a computer with headphones;

Buying a new PC.

Noise is the easiest of all things that affects a person from a computer.

Vibration is another matter. Of course, they are not radiation from a computer, but they will still be worse than noise. Vibrations are created by the same rotating elements. In fact, they can also be removed and, even easier, moved to the floor or further away. But they cannot be written off as a harmful factor. If we consider the maximum negative effects from a computer, then the first places are occupied by radiation from the computer and damage to the user’s vision.

The first include the following computer radiation:

1. electromagnetic;

2. electrostatic;

3. X-ray.

You should immediately discard the latter, since it is only relevant for CRT monitors, i.e. containing in the design an electro-ray tube. And, as you know, she is already a relic of the past. Modern PCs consist of LCD or LED monitors and a system unit.

It also belongs more to the CRT generation, but is still present in modern monitors. This type of computer radiation is generated solely by your monitor. It ranks first in terms of danger, since the person is located facing the source. Thus, the radiation is directed directly to the brain. But there is no need to panic and throw away your computer. This radiation is quite small and cannot cause much harm. Some users use a special screen or film coating to protect against it. This gives them confidence and hope.

The remaining electrostatic radiation occurs in all electrical appliances. Of course, it would be better not to have anything to do with him, but there is no escape from him. Even ordinary sockets have small What can we say about high voltage power lines that often pass near your home?

There is also electromagnetic radiation, the effect of which on the human body is still unclear - has not been studied. For example, such radiation from elements of the system unit. Remember the epic when the panic about mobile phones began. Allegedly, they have harmful effects that affect the brain and potency in men. In practice, everything turned out to be not quite so. Yes, radiation exists, but its influence has not been proven. The same situation applies to the components of a PC or laptop.

Undoubtedly, any radiation on a person is not normal. On the other hand, there is adaptation - the body’s ability to adapt. If we talk about exceptions, the influence of iPad tablet computers has been proven to be harmless. This is what allowed Apple to get on board the planes of American companies in the form of pilot assistants. Whether this is so - time will tell. But it is still prohibited to use mobile phones on airplanes due to the possible interference of the device’s radiation in the aircraft’s systems.

Today, more and more people are starting to use computers regularly, so many are wondering whether there is any harm in using a computer. A computer, like any other electrical device, emits electromagnetic radiation into the environment.

But how harmful is this electromagnetic radiation from a computer to human health?

Neutron radiation

• emitted: neutrons
• penetration: high
• exposure from source: kilometers
• radiation speed: 40,000 km/s
• ionization: from 3000 to 5000 ion pairs per 1 cm of travel
• biological effect of radiation: high

Neutron radiation is man-made radiation that occurs in various nuclear reactors and during atomic explosions. Also, neutron radiation is emitted by stars in which active thermonuclear reactions occur.

Protection from electrified air

In order to protect yourself from air electrified by a computer, it is necessary to install air ionizers in the room. These are devices that refresh the air with negative ions, making breathing easy and pleasant. Ionizers also help to cope with other contaminants, for example, if you smoked in the room, then these devices will help remove the smell of tobacco from the room.

You also need to ventilate the air in the room where the PC is installed more often. In the case of an office, it is necessary to have efficient ventilation. Thanks to good ventilation, the air in the room will always be clean and fresh, no matter how many computers are working there.

Beta radiation

• emitted: electrons or positrons
• penetration: medium
• irradiation from source: up to 20 m
• radiation speed: 300,000 km/s
• ionization: from 40 to 150 ion pairs per 1 cm of travel
• biological effect of radiation: average

Beta (β) radiation occurs when one element transforms into another, while the processes occur in the very nucleus of the atom of the substance with a change in the properties of protons and neutrons.

With beta radiation, a neutron is transformed into a proton or a proton into a neutron; during this transformation, an electron or positron (electron antiparticle) is emitted, depending on the type of transformation. The speed of the emitted elements approaches the speed of light and is approximately equal to 300,000 km/s. The elements emitted during this process are called beta particles.

Having an initially high radiation speed and small sizes of emitted elements, beta radiation has a higher penetrating ability than alpha radiation, but has hundreds of times less ability to ionize matter compared to alpha radiation.

Beta radiation easily penetrates through clothing and partially through living tissue, but when passing through denser structures of matter, for example, through metal, it begins to interact with it more intensely and loses most of its energy, transferring it to the elements of the substance. A metal sheet of a few millimeters can completely stop beta radiation.

If alpha radiation poses a danger only in direct contact with a radioactive isotope, then beta radiation, depending on its intensity, can already cause significant harm to a living organism at a distance of several tens of meters from the radiation source.

If a radioactive isotope emitting beta radiation enters a living organism, it accumulates in tissues and organs, exerting an energetic effect on them, leading to changes in the structure of the tissue and, over time, causing significant damage.

Some radioactive isotopes with beta radiation have a long decay period, that is, once they enter the body, they will irradiate it for years until they lead to tissue degeneration and, as a result, cancer.

Benefits and harms of computers for children

Modern children spend a long time at the computer. Is this good or bad? Both points of view should be considered.

Harm:

• Improper arrangement of the place can cause problems with posture and vision.
• The child's psyche may suffer.
• Computer addiction may occur when a child replaces live communication with the virtual world.
• Children under five years old should not be allowed to use a PC at all to avoid developmental disorders.
• And, of course, radiation, which affects children’s incompletely developed organs.

However, using a computer can also be useful. For example, with its help you can receive new information and explore the world.

At the same time, children's memory and thinking also develop. Therefore, you should not completely exclude the computer from children's use.

However, parents should ensure that their baby does not sit on this device for long periods of time. In addition, it is necessary to properly organize the workplace.

Radiation from a computer can have a negative effect on the human body, just like any other electrical device. However, this does not mean that you should completely abandon the use of this device.

Simply, when using it, you must follow safety rules. This is especially true for parents; they need to monitor the time their child spends near the computer. Then there will be less harm from it than good. Many people have and with a computer, and it also does a lot of harm.

Gamma radiation

• emitted: energy in the form of photons
• penetration: high
• irradiation from source: up to hundreds of meters
• radiation speed: 300,000 km/s
• ionization: from 3 to 5 ion pairs per 1 cm of travel
• biological effect of radiation: low

Gamma (γ) radiation is energetic electromagnetic radiation in the form of photons.

Gamma radiation accompanies the process of decay of atoms of matter and manifests itself in the form of emitted electromagnetic energy in the form of photons, released when the energy state of the atomic nucleus changes. Gamma rays are emitted from the nucleus at the speed of light.

When the radioactive decay of an atom occurs, other substances are formed from one substance. The atom of newly formed substances is in an energetically unstable (excited) state. By influencing each other, neutrons and protons in the nucleus come to a state where the interaction forces are balanced, and excess energy is emitted by the atom in the form of gamma radiation

Gamma radiation has a high penetrating ability and easily penetrates clothing, living tissue, and a little more difficult through dense structures of substances such as metal. To stop gamma radiation, a significant thickness of steel or concrete will be required. But at the same time, gamma radiation has a hundred times weaker effect on matter than beta radiation and tens of thousands of times weaker than alpha radiation.

The main danger of gamma radiation is its ability to travel significant distances and affect living organisms several hundred meters from the source of gamma radiation.

Plants protected from computer radiation

Many people are confident that the best protection against electromagnetic radiation is a cactus.

It seems to absorb harmful rays. However, what would happen to the radars in Mexico, the homeland of this plant, if this were true?

There is only one conclusion - not a single plant will reduce radiation.

However, by placing it in your workplace, you can enjoy its view. This will lift your spirits, and positive emotions have a beneficial effect on the entire body.

Comparative table with characteristics of different types of radiation

As can be seen from the table, depending on the type of radiation, radiation at the same intensity, for example 0.1 Roentgen, will have a different destructive effect on the cells of a living organism. To take this difference into account, a coefficient k was introduced, reflecting the degree of exposure to radioactive radiation on living objects.

The higher the “k coefficient”, the more dangerous the effect of a certain type of radiation is on the tissues of a living organism.

How harmful is phone radiation?

The danger with modern smartphones is not their power (all studies show that they emit non-ionizing waves, i.e. too weak to directly change DNA or heat body tissue, including the brain). But the problem is that we use gadgets non-stop.

SAR and what it is eaten with

Scientists came up with the SAR unit to distinguish between phones based on the strength of their impact on a person. SAR shows how many electrical waves are absorbed by the body when you use a gadget, and is measured in watts per kilogram.

SAR stands for Specific Absorption Rate, loosely translated from English. – absorption coefficient.

There are no international ATS standards, but developments in this direction are underway. For example, in Germany it is considered that the safe level is 0.6 W/kg.

The most dangerous smartphones

BBC Russia, citing the German Office for Radiation Protection, compiled a rating of mobile phones with the highest SAR.

The most dangerous were:

• Huawei
• OnePlus
• Nokia Lumia.

Their SAR is several times higher than the level of 0.6 W/kg.

On the contrary, the safest were:

• Samsung Galaxy,
• Sony Experia M5,
• Google Pixel XL.

Due to their built-in antennas, the body absorbs only 0.14–0.26 W/kg.

How to find out SAR Data on SAR should be indicated in the instructions, on the manufacturer’s website - in open sources.

How to protect yourself

In fact, no way, because phones surround us like fleas in the Middle Ages, but we can try to reduce the harm:

1. Use your phone less often and turn on “In Flight” mode at night (without communication or the Internet).
2. Carry your phone in your bag or backpack, but not in your pocket.
3. At night, put it away on a shelf instead of leaving it under your pillow.
4. Choose gadgets with a low SAR rating.

Video: Types of radiation

Highly radioactive background (smog) is a product of the decay of atoms with subsequent changes in their nuclei. Elements with this ability are considered highly radioactive. Each compound is endowed with a certain ability to penetrate the body and harm it. They are natural and artificial. Gamma radiation has the strongest penetrating ability - its particles are able to pass through the human body and are considered very dangerous to human health.

People working with them must wear protective clothing, since their impact on health can be very strong - it depends on the type of radiation.

How not to go bald

In fact, neither testers nor SES are needed. The power of the devices is indicated in their instructions or passport. The more powerful the device, the stronger it emits. Let's look around our bedroom and lounge, and then the nursery. Let's find electrical appliances that we never turn off or that look powerful. And turn them off for the night. But the most difficult thing is to limit communication with screens and smartphones. And scientists have not yet explored whether it is possible to compensate for the harm of EMR by reading poetry to avoid Alzheimer's, and eating bitter cucumbers to delay cancer.

Should you be afraid of repeaters?

Physicists laugh at the popular superstition that repeaters are dangerous. Having your phone in your hand every hour is much more harmful. The towers look solid, but they are placed high for a reason. Distance, glass and reinforced concrete exponentially reduce the intensity of EMR from repeaters. Living on the top floor and watching the repeater on the neighboring house, you just need to glaze the balcony - that’s it, you can drink tea and cradle the children on the balcony, the radiation level is safe even by strict Soviet standards.

Every day we are surrounded by almost incessant noise, the residents of the metropolis stop noticing it, but it continues to destroy and weaken their body. Radiation from countless sources that do not turn on is a monster that we have forgotten how to respect. But if you can evict the computer from the bedroom, you will give yourself not only health, but also silence, and gradually, when the information withdrawal passes, this silence will be filled with life, yours, and not borrowed from anime and TV series.

Types and characteristics of radiation

There are several types of radiation. People in their line of work have to deal with it - some every day, some from time to time.

Alpha radiation

Helium particles carry a negative charge and are formed during the decay of heavy compounds of natural origin - thorium, radium, and other substances of this group. Streams with alpha particles cannot penetrate solid surfaces and liquids. To protect against them, a person just needs to be dressed.

Beta rays

This type of radiation has more power compared to the first type. For protection, a person will need a dense screen. The decay product of several radioactive elements is a flux of positrons. They are separated from electrons only by charge - they carry a positive charge. If they are exposed to a magnetic field, they deflect and move in the opposite direction.

Gamma radiation

It is formed during the decay of nuclei in many radioactive compounds. The radiation has a high penetrating ability. Characterized by hard electromagnetic waves. To protect against their effects, you will need screens made of metals that can well protect a person from penetration. For example, made of lead, concrete or water.

X-ray radiation

These rays have great penetrating power. Can be formed in X-ray tubes, electronic installations such as betatrons and the like. The nature of the action of these radioactive streams is very strong, which suggests that the X-ray beam is endowed with the ability of strong penetration, and therefore dangerous.

In many ways similar to the above, it differs only in the length and origin of the rays. The X-ray flux has a longer wavelength with a low radiation frequency.

Ionization here is carried out mainly by knocking out electrons. And due to the consumption of its own energy, it is produced in small quantities.

Undoubtedly, the rays of this radiation, especially hard ones, have the greatest penetrating ability.

Peripherals

Not a single computer can do without peripheral devices, mice, keyboards, printers, all this surrounds us. Recently, many users have started buying wireless peripherals for themselves. They communicate with the computer via electromagnetic waves, which causes additional electromagnetic radiation.

Therefore, if you do not want to deal with excessive radiation, it is recommended to choose peripheral models that communicate with the computer via a cable rather than electromagnetic waves. Such models will not only reduce the harmful effects of radiation, but will save you from the need to constantly charge batteries or buy new batteries. Also, wired models are much cheaper than their wireless counterparts.

Also, quite strong radiation comes from uninterruptible power supplies. After the measurements were carried out, it became clear what kind of radiation they produce, it turned out that it is comparable in power only to the radiation from monitors operating on the basis of a cathode ray tube. Therefore, if there is no way to refuse them, you need to hide these devices somewhere away.

What type of radiation is most dangerous for people?

The hardest quanta are X-ray waves and gamma radiation. They have the shortest waves, therefore, they bring more treachery and danger to the human body. Their insidiousness is explained by the fact that a person does not feel their influence, but clearly feels the consequences. Even at low doses of radiation, irreversible processes and mutations occur in the body.

The transmission of information within a person is electromagnetic in nature. If a powerful radiation beam penetrates the body, this process is disrupted. A person initially feels a slight malaise, and later pathological disorders - hypertension, arrhythmia, hormonal disorders and others.

Impact of electromagnetic radiation on humans

The origin and long-term existence of life on the planet occurred under relatively weak electromagnetic radiation. The totality of these radiations consisted of the Earth's magnetic field, cosmic and solar radiation. Today, the saturation and intensity of the planet’s electromagnetic fields have increased many times over. The main sources are high-voltage power lines, various types of radio waves used for communications, location, television, and navigation.

Information impulses inside the human body are also of an electromagnetic nature. Electromagnetic waves penetrating from outside create a certain kind of distortion of information flows inside the human body. Although this deviation is not felt by a person, it can first cause relatively harmless unhealthy conditions, and then grow to dangerous irreparable disturbances in the functioning of human organs.

How is electromagnetic smog determined in a residential apartment?

Every comfortable apartment has a certain level of radioactive waves. They come from household electronic appliances and devices. Electromagnetic smog is determined by a special device - a dosimeter. It’s good when it is present, but if it is not, then they can be identified in another way. To do this, you need to turn on all electrical devices and use a regular radio to check the radiation level of each of them.

If interference occurs in it, squeaking, extraneous noise and crackling are heard, then there is a source of smog nearby. And the more tangible they are, the more powerful and stronger the electromagnetic radiation emanates from it. The source of smog can be the walls of the apartment. Any actions taken by residents to protect their own bodies from their effects are a guarantee of health.

Radiation from computer operation: what is the harm?

In the modern world there is a computer in almost every home. It is used by everyone, everywhere; it is no longer possible to imagine life without it. However, we should not forget that this is an electrical device, and, therefore, there is electromagnetic radiation that affects a person and his condition. Many people, after spending quite a long time at the computer, begin to complain about the deterioration of their condition, pain in the head and eyes.

What happens if you use a PC for a long time? What harm is done to the body?

After some research, scientists made certain conclusions about the influence of radiation.

Conclusions:

• It is carcinogenic
• Affects the cardiac, vascular and hormonal systems,
• Can provoke the development of diseases of the brain and respiratory system,
• Reduces human immunity,
• It has a negative effect on the pregnant woman and the unborn baby.
• Negatively affects the nervous system.

However, this should not be taken literally. Such consequences can develop as a result of constant long-term use of a computer.

The strongest radiation comes from the back of the monitor. Fortunately, nowadays you almost never see monitors with cathode ray tubes. It was from them that the greatest harm to the body was caused.

LCD monitors are no longer so dangerous, but waves from them still exist.

Long-term operation of the PC leads to the fact that some parts begin to heat up. As a result, the release of harmful substances into the external environment begins. The air in such rooms is quite heavy for the respiratory system.

In addition, the air space is gradually saturated with dust particles, which are affected by the electrostatic field of the monitor. Most people who are constantly in such premises have diseases with the respiratory system.

Particular attention should also be paid to laptops. Electromagnetic radiation is also present, so such devices should also not be used for a long time. In addition, it should not be placed on your lap in front of various important organs.

Penetration and protection

The distance to which ionizing radiation can penetrate a substance is called its penetrating power. It depends on the energy of the radiation and the properties of the substance through which the radiation penetrates.

Alpha radiation

Due to their relatively large size and electrical charge, alpha particles interact with all atoms encountered along the way and, losing energy, are easily decelerated upon contact with matter. In the air, their range is several centimeters. A thick sheet of paper will stop the particle completely.

In living human tissue, the mileage of a particle is less than 0.7 mm. Alpha radiation affecting an unprotected part of the body cannot penetrate even the outer layer of skin formed by dead cells and does not cause harm to the body.

Therefore, alpha radiation is dangerous only when alpha particles enter the body (with air, drinking water and food) and directly affect organ cells, causing their damage.

Beta radiation

The penetrating power of a beta particle is significantly greater than that of an alpha particle because the electrical charge of a beta particle is half that of an alpha particle. In addition, the mass of a beta particle is approximately 7000 times less than the mass of an alpha particle.

Due to its small mass and small charge, the ionization caused by the beta particle is less, and, as a result, the energy of the beta particle is spent over a greater distance.

The penetrating ability of a beta particle in air varies from 0.1 to 20 meters depending on the initial energy of the particle.

In most cases, safety glasses and personal protective equipment (PPE—suit, boots, gloves, hat) provide sufficient protection from external exposure to beta particles. A high risk of exposure to beta particles is associated with their entry into the body during food intake due to violation of hygiene rules.

Gamma radiation

It is more difficult to protect yourself from the effects of gamma radiation than from the effects of alpha and beta particles. Its penetrating ability is very high, and gamma radiation is capable of penetrating through living human tissue.

It cannot be stated unequivocally that a certain thickness of a certain substance will completely stop the effect of gamma radiation. Some of the radiation will be stopped, but some will not. However, the thicker the layer of protection and the higher the specific gravity and atomic number of the substance that is used as protection, the more effective it is.

The thickness of material required to reduce the radiation by half is called the half-attenuation layer. Its thickness, naturally, varies depending on the protection material used and the radiation energy.

1 cm of lead, 5 cm of concrete, or 10 cm of water can reduce the power of gamma radiation by 50%. This example applies to radiation from cobalt-60, which is the predominant source of gamma radiation in nuclear power plants.

Protection from harmful effects of the computer

Regardless of whether there is radiation from the computer, you should consider some rules for using this device to avoid negative consequences.

Rules:

• The distance from the back of the monitor to the user's back should be at least one and a half meters.
• Power cords should be kept as minimal as possible.
• The distance to the monitor should be comfortable for vision, and it should be placed in a corner of the room.
• Radiation from the system unit can be minimized if it is located at a sufficient distance from the workplace.
• In a room with a computer, it is necessary to carry out wet cleaning more often.
• When choosing a monitor, you should pay attention to the Low Radiation label, which indicates a low level of radiation.
• Protective screens should be used, especially for fans of computer toys.
• If there are several PCs in the room, then they are placed around the perimeter and the middle is left empty.

Compliance with these rules will minimize harm from your computer.

Smartphones and tablets: mobile Internet in moderation

Photo: Depositphotos
Smartphones and tablets are convenient and popular mobile devices. But when using mobile Internet, you are constantly exposed to 3G/4G waves. It turns out as if you were talking on a mobile phone for several hours.

Unfortunately, many people smoothly move from business and friendly communication to watching videos and listening to music. And “in between times” they also browse websites. In general, you will also need to deal with these habits. Moreover, time can be spent in much more interesting and useful ways. In this article, we also do not talk about other problems associated with smartphones.

Recommendations for mobile Internet:

• Try to use mobile Internet less.
• If possible, keep the gadget away from you. For example, if you are watching a video or listening to music.
• It will be more convenient and safer to watch the video on a large TV screen.
• You can listen to music through the “good old” music center.
• In the case of music and video, you can also use your smartphone by connecting it to the center or TV. But we download the files in advance. (Or at least keep the smartphone away from you if there is an active online transmission.)
• Switch to a laptop if possible.
• Limit exposure to smartphone passive mode. Turn it off at night. Keep it away from you, for example, on a table. Moreover, to maintain connection with the network, it works more actively than a regular cell phone.

3G/4G modems are common devices that are used to access the network outside the city. But along with the convenience, we also got a headache, often literally. How not to connect a modem and how to do it, we will talk in this article. Separately, about Wi-Fi technology, which is considered practically safe.