Electromagnetic radiation. Types and application. Influence

People named Amy are distinguished by courage, leadership qualities and the ability to face difficulties and obstacles gracefully and quickly. Such people have a very rich imagination and have creative abilities that help them achieve success in the field of art and any creative activity. Amy strives for love, life initiative, success and can achieve a lot in any field. People like Amy are valued for their rare combination of practicality and determination, so they almost always achieve their goals. True, in love they can be very demanding, flighty and fickle.

pros

• Optimism helps them to be successful under various circumstances;
• People with this name are distinguished by their strong character, willpower and ability to get along with others;
• They are able to withstand difficulties, troubles and life's problems like no one else.

Minuses

• They can be too categorical and cruel, incapable of pity;
• They are too persistent in achieving their goals, and can be very hot-tempered and always dissatisfied with others;
• They are fickle in love, and it is very difficult to return their former disposition if they are disappointed;
• In some cases, they may turn out to be practical to the point of greed, inattentive to people.

Definition and history of discovery

Electromagnetism is a branch of physics that deals with electricity, magnetism, and the interactions between them . It was first discovered in the 19th century and is widely used in the modern world of physics.

Electromagnetism is basically the science of electromagnetic fields. An electromagnetic field is a field created by electrically charged objects . Radio waves, infrared waves, ultraviolet waves and X-rays are electromagnetic fields in a certain frequency range . Electricity is produced by changing a magnetic field. This phenomenon is also called "electromagnetic induction". In the same way, a magnetic field is created by the movement of electric charges.

The fundamental law of electromagnetism is known as Faraday's law of induction . The phenomenon of electromagnetism was discovered in the 19th century, and this led to the discovery of Albert Einstein's "special theory of relativity." According to his theory, electric and magnetic fields could be converted into each other with relative motion. This phenomenon and its applications were discovered through numerous contributions from great scientists and physicists such as Michael Faraday, James Clerk Maxwell, Oliver Heaviside and Heinrich Hertz . In 1802, an Italian scientist demonstrated the connection between electricity and magnetism by deflecting a magnetic needle using electrostatic charges.

Electromagnetism is basically a hypothesis of a combined expression of the fundamental force known as "electromagnetic force" . This force can be seen when an electric charge moves. This movement produces magnetism. This idea was introduced by James , who published the theory of electricity and magnetism in 1865. Based on this theory, many scientists have made many discoveries and other effects. Electromagnetism has expanded into the field of quantum physics, where light travels as a wave and interacts as a particle.

It has been proven that electricity can cause magnetism and vice versa . A very simple example is an electrical transformer. The exchanges take place inside a transformer, which generates electromagnetic waves. Another fact about these waves is that they do not require a medium to propagate , although their speed is relatively slower when traveling through transparent materials.

Theory of EMF, EMR, EMV

Electromagnetic waves ( EMW ) are EMF disturbances that appear when the electric field changes, creating waves of certain lengths and frequencies, propagating in space at a speed depending on the properties of the medium (in a vacuum - 300 thousand km per second) and characterized by frequency, length and the power of transferred energy.

Electromagnetic radiation ( EMR ) is a collection of electromagnetic radiation emitted by various objects, or the propagation of energy waves.

Electromagnetic waves propagate in matter and in vacuum at the speed of light (C = 300,000 km/s).

Classification of the Center for Electromagnetic Safety (CESB). Electromagnetic fields are divided into 2 groups:

1) having a natural origin - radio waves from cosmic sources, the electromagnetic field of the Earth, electromagnetic oscillations in the ionosphere, electromagnetic fields of living organisms;

2) having artificial origin - a) emitters of electromagnetic energy - television and radio stations, radar installations, medical equipment, etc.; b) industrial installations - power lines, transformer substations, household and office equipment.

Electromagnetic waves are characterized by length, frequency and power of energy (transferred). — electric field lines.

Electromagnetic fields in their frequency are low - up to 3 Hz, industrial frequency fields - from 3 to 300 Hz, radio frequency fields - from 30 Hz to 300 mH, with ultra-high radio frequency range (UHF) - from 300 MHz to 300 GHz.

(Wikipedia - Radio radiation is electromagnetic radiation with wavelengths of 5x10-5-1010 meters and frequencies, respectively 6x1012 Hz and up to several Hz. Radio frequencies - frequencies or frequency bands in the range of 3 kHz - 3000 GHz, which are assigned conventional names ) .

The longer the wavelength, the lower the frequency of the radiation.

Electric field strength (E), magnetic field strength (H), energy flux density (EFD) are three main parameters that characterize the electromagnetic fields of radio and microwave waves.

The intensity of waves of different frequencies is assessed differently.

In the radio wave range less than 300 MHz, their intensity (according to IRPA/INIRC recommendations - less than 10 MHz) is expressed by the electric intensity (V/m) and the magnetic component strength (A/m, 1 Oersted = 79.58 A/m in vacuum; in air environment 1E=1Gs).

Magnetic fields are characterized by a quantity called magnetic field induction (B) , and is the force exerted by a magnetic field on a unit current element located perpendicular to the induction vector. Magnetic field induction is measured in Tesla . In addition, the term “gamma” is used, denoting a value that is equal to 1 nT.

In a vacuum, EMF is described by the electric field strength E and magnetic induction B. In any environment - two more quantities - magnetic field strength H and electrical induction D.

Electric field strength is a force characteristic, a vector quantity E, determined by the ratio of the force acting from the field on a sufficiently small electric charge to the magnitude of the charge. Very often, the electric field strength is simply called the “electric field.”

Magnetic field strength is a force characteristic, a vector quantity, of a magnetic field that does not depend on the magnetic properties of the medium. , it coincides (in CGS units) with the magnetic induction B. In the environment, it is the contribution to the magnetic induction created by external field sources, and is equal to the difference between the magnetic induction vector B and the magnetization vector J. (Measured in Oersteds in the CGS and in A/m in the SI).

In the range of microwave waves, above 300 MHz, the intensity is determined by the energy flux density PES , which is expressed in W/m2.

Electromagnetic waves

Electromagnetic waves were first discovered by James Clerk Maxwell and they were subsequently confirmed by Heinrich Hertz . Subsequently, Maxwell obtained the wave form of the electric and magnetic equations, which showed that electric and magnetic fields have a wave-like nature. The factors that distinguish electromagnetic waves from each other are frequency, amplitude, and polarization . For example, a laser beam is coherent, but the radiation has only one frequency. There are other types of waves that vary in frequency, such as radio waves, which are at very low frequencies, gamma rays, and X-rays, which are at very high frequencies. Electromagnetic waves can travel very long distances and are unaffected by any obstacles, be it huge walls or towers.

This special interaction of electricity and magnetism has led to great advances in modern science and technology, and efforts are being made to learn more about electromagnetism and its applications. Other forces are gravitational forces, strong and weak forces. Electromagnetism is also combined with a weak force, known as the "electroweak force".

Decoding the meanings of each of the letters of the name Amy

M - Peacefulness, goodwill, humanity helps such people build relationships with others. They are caring, charming and open to everything new, regardless of their age.

I - People with this letter are soulful, have a very subtle mental organization and excellent aesthetic taste, a desire for harmony, beauty, and grace. For them, the environment and thinking are of great importance. Such people are very honest, ironic, straightforward in any situation, which is unlikely to delight loved ones, as a result of which they may have many remarriages and extramarital relationships.

Applications of electromagnetism

Electromagnetism has many applications in the modern world of science and physics. The most basic application of electromagnetism is in the use of motors . The motor has a switch that continuously switches polarity on the outside of the motor. An electromagnet does the same thing. We can change the direction simply by changing the direction of the current. There is an electromagnet inside the motor, but the current is regulated in such a way that the external magnet repels it.

Another very useful application of electromagnetism is the "CAT scanning machine" . This machine is commonly used in hospitals to diagnose diseases. Because we know that there is a current in our body, and the stronger it is, the stronger the magnetic field. This scanning technology is capable of detecting magnetic fields and can be easily identified if there is a large amount of electrical activity present within the body.

The functioning of the human brain is based on electromagnetism . Electrical impulses cause operations inside the brain, and it has some magnetic field. When two magnetic fields cross each other inside the brain, interference occurs which is harmful to the brain.

Discography[ | ]

Evanescence[ | ]

Main article: Evanescence discography

• Fallen
  (2003)
• Anywhere But Home
  (2004) (Live)
• The Open Door
  (2006)
• Evanescence
  (2011)
• Synthesis
  (2017)

Solo albums[ | ]

• Aftermath
  (featuring Dave Eggar) (2014)
• Recover, Vol. 1
  (2016)
• Dream Too Much
  (2016)[9][10]

Collaboration and other songs[ | ]

Notes[ | ]

1. Amy Lee - Vocal Range/Profile (English). www.divadevotee.com. Retrieved January 1, 2020.
2. Robert Thomas Lee - Obituary & Service Details (unspecified)
   . www.rollerfuneralhomes.com. Retrieved June 6, 2020.
3. Michael Roberts.
   Q&A With Evanescence's Amy Lee
   (unspecified)
   (Nov. 21 2007).
4. Evanescence Singer Amy Lee Gets Married
5. EVANESCENCE FRONTWOMAN AMY LEE IS PREGNANT
6. Kaufman, Spencer
   .
   Evanescence's Amy Lee Gives Birth to Baby Boy, Loudwire
   (July 28, 2014). Retrieved July 28, 2014.
7. It's a boy! Evanescence singer Amy Lee announces she's given birth to son Jack Lion by sharing tender Instagram photo, Daily Mail
   (July 28, 2014). Retrieved July 28, 2014.
8. Amy Lee gave birth to a boy (unspecified)
   (inaccessible link). Retrieved July 30, 2014. Archived December 8, 2020.
9. Evanescence's Amy Lee Details Kids Album 'Dream Too Much'
10. Amy Lee shared solo track “Dream Too Much” (unspecified)
    (unavailable link). Retrieved October 30, 2020. Archived October 30, 2020.

Safety of use:

The US Federal Communications Commission (FCC), the American National Standards Institute (ANSI) and the Institute of Electrical and Electronics Engineers (IEEE) have determined that devices operating within 20 cm of the human body must have a SAR level of no greater than 1.6 W/kg.

SAR (Specific Absorption Rates) is a radiation level that determines the electromagnetic field energy released in the tissues of the human body in one second. This indicator, in particular, measures the magnitude of the harmful effects of mobile phones on humans. The unit of measurement for SAR is watt per kilogram (W/kg).

EMR Patch has passed certain laboratory tests that check the Specific Absorption Rate (SAR). It reduces SAR from mobile phones from 2.3 W/kg to 1.37 W/kg (less than the 1.6 W/kg limit recommended by the US Federal Communications Commission). The device absorbs 97.5% of harmful radiation.

What harm do EMRs cause to the human body?

The harm to health from sources of ionizing radiation has been proven for a long time, and there is probably not a person who does not know about the negative consequences of exposure to X-rays or gamma rays. The impact of EMF from non-ionizing sources on human health is still poorly understood, but scientists around the world have already proven its negative impact.

Main types of anthropogenic electromagnetic radiation:

• high-voltage power lines;
• microwave and radio emissions from wireless communication devices and household appliances.

Electromagnetic fields and radiation pose a threat to almost all systems of the human body. Under their influence:

• the passage of nerve signals from the brain to other organs deteriorates, which affects the activity of the whole organism: brain coordination is disrupted, reflexes are dulled;
• Negative changes in the mental state are detected: impaired memory and attention, in severe cases the appearance of suicidal thoughts, delusions, hallucinations;
• there is an adverse effect on the circulatory system: EMR can provoke the clumping of blood cells, which will lead to blockage of blood vessels, arrhythmia, and increased blood pressure;
• there is a decrease in the permeability of cell membranes, due to which the body experiences oxygen starvation and insufficient supply of nutrients;
• the production of hormones is disrupted, since under the influence of electromagnetic fields there is constant stimulation of the pituitary gland, thyroid gland and adrenal glands;
• immunity decreases (frequent acute respiratory viral infections, sore throats), and immune cells begin to attack their own cells (the occurrence of allergic reactions) due to a drop in the level of lymphocytes.
• the risk of cancer increases - there is evidence that intense exposure to certain frequencies of the electromagnetic spectrum can have a carcinogenic effect;
• sexual function is suppressed in men (decreased potency) and women (menstrual cycle irregularities, infertility).

Electromagnetic radiation has a particularly harmful effect on the fetus in the womb.

Constantly exceeding the permissible dose of EMR during pregnancy leads to a negative impact on the mother and to pathologies in the development of the child at different stages, especially in the first trimester:

• the formation of defects of various organs;
• slow development of the most important systems of the body;
• stillbirth;
• premature birth.

One study of the effects of electromagnetic waves on pregnant women found a high likelihood of stillbirth and spontaneous abortion when the maximum permissible EMR level was increased. Those participants in the experiment who constantly wore an electromagnetic emitter had twice the risk of miscarriage. If a child is born, he has a high probability of developmental pathologies, since EMR affects the DNA structure, damaging it.

The conclusion is disappointing - the influence of electromagnetic radiation on the human body is negative and negatively affects the activity of almost all of its systems. To avoid its destructive effects on health, it is necessary to take care of life safety (LHS) and methods of protection against electromagnetic radiation.

Amy Lynn Hartzler (Amy Lee)

“Music is one of the most important things in my life. I firmly believe that creativity is the best therapy for your soul, which is why I encourage my fans to engage in creation. When you create something, this is true life. And when you create something as real as music, you feel worthy, fulfilled.”

Personality, energy, creativity

Insanely talented, exuding megahertz of her frantic energy, which makes fans go into ecstasy at concerts, a girl of unusual beauty - this is all about the permanent vocalist of the band Evanescence, Amy Lee...

The essence of the music of Evanescence and its vocalist Amy lies in the fine line between the melodic shimmer of the piano and the sharp transition to the resonating bass of the guitars. The group's aggressive playing, accompanied by Amy's strong and passionate vocals, combined with deep lyrics permeated with the struggle in the inner world of a person, make the group unique and recognizable by listeners around the globe.

This woman truly deserves to be called the owner of a great soul. Behind the stereotype, the icon of rock music, the goddess of powerful vocals and gothic images, the idol of millions of teenagers, there is a gentle, intelligent woman who has made a fortune from her talent. However, fans love her precisely because, without going into commercialism, Amy remains true to her principles and her soul, remaining a musician first and foremost, and a businesswoman second. She is so unique that her name has already been written down in the history of modern music.

Amy Lee's childhood was by no means calm - constant family moves from her native Little Rock (Little Rock, Arkansas) in California to Florida or Illinois, a noisy family with five children, the early death of her sister Bonnie at the age of three from an unknown illness - all this influenced for the development of little Amy. However, a musical family helped her begin to realize all her talents from early childhood, and music absorbed Lee’s entire being. Already at the age of three she began learning to play the piano and did this for nine years. At the same time, her father, John Lee, a radio DJ, taught her to play the guitar. Amy has never taken professional vocal lessons, unlike piano lessons.

Eventually, the Lee family settled in their native Little Rock, where the band Evanescence was founded. After graduating from Pulaski Academy (a Baptist convent school) in 2000, Amy attended Middle Tennessee State University. She loved studying, especially since she was always interested in art, which is what her previous school specialized in.

Amy's longing for her deceased sister can be traced throughout Amy's work and lyrics. The touching song “Hello” from the album “Fallen” is dedicated to this event in her life.

According to Lee, the first songs she wrote herself at age 11 were called "Eternity of the Remorse" and "A Single Tear." At one time she dreamed of being a classical composer. But over time, having met like-minded people in the future group, she felt a craving for heavier music.

Naked soul

What is most admired about this person is how far she is from the bustle of show business, especially now, having become a world-famous person, the fire of soul, humanity, kindness, and thirst for life still burns in her eyes. Amy Lee's fans love her not only for her powerful music, but also for her views on show business. Namely: Lee does not focus on commerce, does not think only about how to make money from his talent. She simply does her favorite thing, without getting lost in the hustle and bustle of the modern rhythm of life, where everyone, trying to earn as much as possible, forgets why they started making music in the first place.

For example, in the music video for the song “Everybody's Fool,” Amy wanted to show that most celebrities, using sexual imagery, are just selling their “lies” to the masses. Amy refuses to compete with her colleagues in the use of sexuality in music, leaving only her naked soul on stage.

Hobbies

Lee does most of the sketches for concert costumes himself. She usually wears corsets, fishnets, long skirts and leather boots when performing. Amy can be caught lacking a sense of style by looking at some of her shapeless outfits. However, what is a sense of style compared to dedication to her views, the uniqueness of the image and the way she presents herself? It is impossible not to fall in love with a person who loves his job so much, and has such boundless charm and talent to captivate the public at concerts, once he has witnessed all this.

In addition to his main occupation - working with the group, Lee has other hobbies. Few people know that she is interested in painting. According to the singer, her entire house is filled with paintings in the spirit of fantasy or abstract art, but so far she has not thought of exhibiting them in public. However, he does not give up the idea of ​​implementing this in the future by organizing an art show.

Out of the Shadows

Amy Lee is the founder and regular sponsor of the international foundation for supporting people with epilepsy, including. Lee's younger brother, Robbie, was diagnosed with this disease, which prompted Amy to engage in charity work. is designed to spread knowledge about the disease epilepsy, bring to people as much information as possible about it, and eliminate prejudice against people with this disease.

On the official website of the Out of the Shadows Foundation, the following is written on behalf of Amy:

“I love what I do, and I’m glad that my music resonates in the hearts of people. I only write songs about what I've been through in life, and if my fans really appreciate my work, then it's all worth it. But we must not forget that I am an ordinary person. I don't have extraordinary abilities. We are all ordinary people - we live and are part of each other's lives. And this applies to people with epilepsy, including. When you look at me behind the stage, you won't be able to tell me apart from other people. The same is true for patients with epilepsy. When you see them outside of attacks, they act and live just like us - they are also part of our lives, and we are part of theirs.”

Amy Lee claims that epileptic seizures can be softened with the help of Mozart's music. It was he who was chosen from six proposed composers, such as Joseph Haydn and Franz Liszt, to conduct the experiments. Although music has not been proven to lead to a complete cure for the disease, obvious improvements in seizures have been noted. In the April 2002 issue of the journal Epilepsy & Behavior, it was stated that listening to Mozart reduced seizure symptoms.

In conclusion of the article, we present Amy’s words, which have, perhaps, the most positive and creative message to all her fans, and to every person, regardless of musical, social, racial, religious and any other conventional affiliation:

“Music is one of the most important things in my life. She helps me with everything. She helps me to be understood. She makes me cry, angry, happy, everything. I firmly believe that creativity is the best therapy for your soul, which is why I encourage my fans to engage in creation. When you create something, for example, music, this is true life. And when you create something so real, you feel like a truly worthy, realized person."

Evanescence official website

Device action:

EMR-1 protects against negative radiation from high-frequency household electrical appliances:

• TV;
• Microwave;
• Computer;
• Laptop, iPad;
• Wi-Fi modem (router);
• Cellular telephone;
• Radiotelephone (wireless);
• MP3 players, etc.

Reduces symptoms that many people experience - headaches, dizziness, fatigue and feelings of weakness. Makes you feel more comfortable.

Content

• 1 Types of electromagnetic weapons
• 2 Defeat missiles and precision-guided munitions with EMP weapons
• 3 Defeat means of guerrilla warfare with EMP weapons
• 4 Protection against EMP weapons 4.1 Means for discharging part or all of the EMP energy at the entrance to the device
• 4.2 Means of breaking circuits in the event of strong induced currents
• 4.3 Electronic devices not sensitive to EMI

Education and use of electromagnetic radiation

Electromagnetic fields that are formed by radiation of the same name are usually divided into natural, that is, those that exist independently, and anthropogenic (arising as a result of the human factor).

Natural factors include magnetic and electromagnetic radiation generated by the core of the globe. Man-made types of radiation include high-frequency and ultra-frequency waves, as well as light rays and laser radiation. Human exposure to electromagnetic fields and radiation of both natural and anthropogenic origin tends to have a negative impact on almost all organs and systems, as well as the body as a whole.

How electromagnetic radiation affects humans, as well as what consequences it leads to, has been known for quite some time, but it is almost impossible to limit its use. This is due to the fact that this type of radiation underlies the activities of television and radio communications, since it is thanks to electromagnetic pulses that the visualization of the transmitted image from the television center to each television becomes possible.

This type of radiation is also widespread in the operation of mobile phones, since connections between subscribers occur using electromagnetic pulses. The impact of electromagnetic networks on the human body also occurs when using computer technology, Internet connections and much more.

The generated electromagnetic radiation is widely used in modern society, since thanks to its generation we have access to radio and telecommunications, mobile communications, computer technology and much more.

The influence of electromagnetic radiation on the human body

The influence of electromagnetic fields on the human body manifests itself in a number of negative consequences for the body as a whole, as well as its individual components.

The consequences of such exposure depend on a number of external and internal factors, but even the smallest influence disrupts homeostasis at the atomic-molecular level. With increasing intensity of influence, such changes can be expressed at the cellular, systemic or even organismal levels.

The nervous system, as well as the cardiovascular system, are most affected. First, symptoms such as headache and dizziness, general weakness, sleep disturbances, etc. appear. Blood pressure suffers, changes also manifest themselves in an increase or decrease in blood pressure. This is followed by a slowing of the pulse, heart pain (may be accompanied by tachycardia or bradycardia), hair loss and brittle nail plates. In the early stages, damage caused by electromagnetic radiation is reversible. It is possible to get rid of such consequences by stopping the impact of the negative factor, as well as after carrying out symptomatic therapy.

If the influence of the electromagnetic field on the human body had a direct connection with a violation of the main and medulla oblongata, which are especially sensitive to such radiation, changes in the nervous system are considered irreversible and cannot be leveled. They can manifest themselves in impaired coordination of movement, rarely cause deviations in muscle tone such as a convulsive attack, etc.

In addition to the harmful biological effects on the body, which is manifested by a number of systemic disorders, the influence of the electromagnetic field on a person also contributes to the creation of charges when the body comes into contact with a metal object.

This can occur when a person (who is not touching the ground) touches a metal object (which is in direct contact with the ground). It may cause unpleasant pain or even minor seizures.

If you notice symptoms from exposure to electromagnetic radiation, you should immediately seek specialized medical help. Stopping exposure to a negative source and carrying out independent drug therapy will improve the patient’s condition, but in any case it is worth consulting with a doctor.