Presentation "The influence of a cell phone on human health." Presentation on physics “The influence of a cell phone on the human body, listening, strong excitement
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PROJECT WORK IN PHYSICS “The influence of a cell phone on human health” Author of the work: Marina Tsagolova (11th “G” grade; MBOU SOMSH No. 44). Year of development: 2015 academic year. Project goal: To consider the effect of a cell phone on the body.
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Mobile phones have become a part of our lives. This includes the Internet, satellite television, and mobile communications. Without it, the information age is impossible. Each of us must understand the adverse effects due to electromagnetic radiation.
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HYPOTHESIS: Mobile phones have harmful effects and we need to think about it. Objectives: to study the history of mobile communications, to give examples of scientific research into the influence of cellular communications on the human body, to find out how a cell phone affects the health of children. conduct a survey on the topic: the importance and popularity of a mobile phone; conduct an experiment.
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First Inventor Mobile phone creator Martin Cooper, who was the lead engineer in the Motorola department that developed the first cell phone, criticized modern mobile phones.
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Martin Cooper made the first wireless call in April 1973. As he recalls, the first mobile phone weighed a kilogram, and its battery only lasted for 20 minutes of conversation. Cooper noted that this was very useful, since the hand still could not stand it for more than twenty minutes. First wireless call
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The influence of cell phones on our body. Scientists have not yet come to a clear conclusion about how harmful mobile phones are. But there is more and more evidence that they do have a negative effect on our body.
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Effect on brain activity When using a mobile phone, our entire head is irradiated. When using a mobile phone, our entire head is irradiated. Cell phone radiation damages areas of the brain associated with learning, memory and movement. Scientists believe that when talking on the phone, “the energy of the same nature that rotates electric motors and cooks chicken in the microwave penetrates the head, affecting the brain and other human organs.” .
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Effect on vision The phone's screen radiation is very low. The whole point is not at all in the radiation, but precisely in these very small screen sizes. Our eye is designed in such a way that it is extremely difficult for it to focus its gaze on a minimally sized object. The eye muscle has to make superhuman efforts to transmit a clear picture to our brain, especially when it comes to mobile chat or mobile games, when the tension reaches its limit when spending the longest possible time with a phone in your hands. Studies on this matter have shown that two hours of communication (consecutively) a day with your mobile friend is enough for your vision to drop by 12-14% after a year.
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Effect on hearing. During a prolonged conversation, there is an increase in the temperature of the ear, eardrum, adjacent tissues and the adjacent area of the brain. Surely many of you may have noticed a feeling of warmth in your ear after a long conversation. This is nothing more than the result of exposure to the electromagnetic field created by the telephone transmitter. Scientists have found that the risk of developing a tumor in the ear to which a mobile phone is applied is 3.9 times higher than in the opposite ear.
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Affect the heart, blood. Affect the heart, blood. But the most unexpected thing for many was that the mobile device affects the composition of a person’s blood. Man is also an electromagnetic system. As you know, our blood is salty, these are positive and negative ions NaCl. Accordingly, this effect can lead to an increase in blood viscosity, blood cells will begin to form blood clots, and this is already fraught with problems with the cardiovascular system.
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Personal data No. 1. I conducted research in the form of a questionnaire. The purpose of the study is to analyze information about children’s attitudes towards the telephone and its use. Have you heard about the effect of the telephone on the human body? (8th and 11th grade students) Conclusion: the vast majority have heard about the effect of the telephone on the body. Conclusion: the vast majority have heard about the effect of the telephone on the body. Conclusion: The vast majority have heard about the effect of the telephone on the body.
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2. When did you get a mobile phone? (students 8, 11 grades) Conclusion: Basically, the telephone appeared due to the fact that children went to school, and parents were worried about where the child was. 20% say that the phone has turned into a toy, and often becomes a subject of boasting.
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3.How you hold the phone during a conversation. Conclusion: Unfortunately, most people do not know that by pressing the “tube” to the ear they receive a large dose of radiation.
Research
Subject:
«
Completed : about students of 4th "A" class
Tcherezov Bogdan
Tarasov Denis
Supervisor: Zryumova S.V.
Target: identify the benefits of mobile phones and their possible negative impact on the health of primary schoolchildren
Tasks :
- Conduct a survey of 3rd and 4th grade students to identify the frequency of their mobile phone use during the day.
- Study various theoretical sources on the research topic.
- Identify the benefits and possible harms of mobile phones.
- Create a reminder for primary school students on the safe use of cell phones.
- Subject of study: benefits and possible harm of mobile phones
- Object of study: mobile phone
- Hypothesis: mobile phones have harmful effects and many people don’t think about it
- Research methods : observation, research of journalistic and scientific sources, questioning
PROS mobile communication
1.Expands communication between people.
2.Enables parents to always know where the child is.
3. Guarantees the safety of the student: panic buttons to the Ministry of Emergency Situations, to the police, to a psychologist consultant.
4.Promotes obtaining new information via the Internet.
5.The phone is equipped with a calculator, alarm clock, clock, flashlight, and camera, which can be used at the right time.
MINUSES mobile communication
1. Melodies played during lessons and SMS sent distract students from the lesson and disturb teachers.
2. Listening to music or talking on the phone makes a person absent-minded: according to statistics, people on the street talking on the phone or listening to music are several times more likely than other pedestrians to get hit by a car.
3. Accidents occur more often if the driver was also talking on the phone while driving.
4. Provokes theft.
5.Frequent conversations and SMS correspondence require additional financial costs (sometimes not small!).
The influence of mobile phones on human health
Cell phone radiation damages areas of the brain associated with learning, memory and movement .
Recent studies have shown that two hours of communication (consecutively) a day with your mobile friend is enough for your vision to drop by 12-14% in a year.
A person who has been using it for several years headphones regularly, accelerates the aging process of hearing by two to three times. The effect of false signals and noise appears, which in fact does not exist, and surrounding sounds are confused. And all because in headphones completely different sound quality than in a real environment.
Mobile phones are a real source of infection. There are more bacteria on the body of a mobile phone than on door handles, keyboards, and soles .
Prevention and protection measures
You should limit the duration of one conversation to three minutes, maximizing the period between two conversations (minimum pause - 15 minutes).
Send SMS messages instead of calls.
Don't carry your phone in your pocket or on a lanyard, but keep it on your desk or bag to avoid cancer.
Don't talk on your cell phone in a car or on a bus.
Prevention and protection measures
When sleeping, turn off your phone and move it away from your sleeping area.
During the conversation, use headphones or speakerphone.
Use phone cases made of a unique material that attenuates electromagnetic radiation by 500-1000 times.
Mobile etiquette
Turn off your cell phones during class periods.
It is necessary to turn off your personal mobile phone or switch it to silent mode at performances, film shows, concerts, museums, business meetings and negotiations.
Use a mobile phone in public transport and in public places with the lowest sound volume.
Mobile etiquette
Turn off your mobile phones whenever using radio communications could endanger the lives of others.
Having your phone on on an airplane is dangerous. It is necessary to turn off cell phones during takeoff and landing.
Respect other people's privacy and do not use other people's mobile phones.
Do not use sound phrases that are offensive to others as a call.
Don't use your phone screen to illuminate the pleasant darkness of the cinema hall.
It is impolite to text while having a personal conversation with someone. Follow the “three meter rule”.
Frequency of mobile phone use
have their own phones – 100% learning
The average number of calls per day is 11 stars.
What phone features do you use most often?
Communication with friends and parents - 30 hours
Games – 30 hours
Music – 32 hours
Calculator – 14 hours
Alarm clock – 10 o'clock
Chat (SMS) – 15 hours
Where do you carry your phone?
Stay at home – 4 hours
in the briefcase – 14 hours
in your pocket – 10 hours
Do not have a permanent place –5 hours
Where do you keep your phone at night?
Measuring blood pressure before and after using a mobile phone
- Before the game 90/60
- After the game 100/70
conclusions
mobile phones are essential in everyday life
Mobile phones have a negative impact on human health
You need to know the rules for using a mobile phone and not neglect them in order to protect your body from harmful effects.
Enina Irina, Matyukhina Anastasia, Smirnov Maxim, 9th grade, 2012-2013 academic year
Searching for information and researching various aspects of the use of cell phones, their impact on human health based on the joint activities of students and teachers of our school.
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Project “The influence of a cell phone on human health” Section “Natural mathematics” Completed by: Smirnov M.D., Matyukhina A.V., Enina I.A. Scientific supervisor: Kuporosova S.A.
Problem: Does a cell phone affect human health? If so, how? Hypothesis: Cell phones bring not only benefits, but also harm.
In the modern world, a mobile phone has become an indispensable thing for a person. In recent years, the cell phone has evolved from an expensive device into a common thing, the ringing of which can be heard anywhere today. But many people do not know what harm the phone does to human health. This determines the relevance of our work.
The goal of the project is to organize a search for information and conduct research on various aspects of the use of cell phones, their impact on human health, based on the joint activities of students and teachers of our school. 1. Study material on the topic; 2. Design and conduct research; 3. Analyze the collected material. 4 . Formulate conclusions to confirm the stated hypothesis. Tasks:
History of the development of cellular communications The official birthday of cellular telephony is April 3, 1973, when Martin Cooper, head of the mobile communications division of the American company Motorola, made the world's first call on a mobile phone. Martin Cooper
However, this event was the culmination of a very long process that began in the 19th century. Scientists contributed to the development of cellular communications: Popov A.S., Guglielmo Marconi, Reginald Fessenden. Guglielmo Marconi D. Ring developed the cellular principle for organizing a mobile communication network, which solved the problem of mutual interference. Reginald Fessenden
Despite the enormous contribution of American companies, cellular communications did not develop only in the United States. In Europe, the trendsetters in mobile communication technologies were Ericsson and Marconi. The first mobile communication systems in Europe are usually dated back to 1951, when S. Lauren from the Swedish Telecommunications Network Administration developed and tested an automatic mobile telephone system.
Types of cell phones In addition to regular cell phones, there are such varieties as: Camera phone Smartphone Communicator Business phone Brand phone Disposable phone
Elements of a cell phone Most mobile communication standards use a SIM card to identify the subscriber. Cell phone elements also include battery, keypad lock, wallet, vibration alert, standby and talk time, voice dialing, voice mail, voice recorder, player, profile, roaming, network, service, browser, dead zone, JAVA platform , Hand-free , MM S
How to choose a cell phone? Today many people have a cell phone. The demand for phones is constantly growing. And therefore, manufacturers are increasingly releasing new models, which makes it possible to choose from the simplest and cheapest to the most expensive fashion mobile phone. When buying a cell phone, you need to pay attention to: Types and sizes of screen (display) screen size type and capacity of the battery Presence of a camera in the cell Memory
At our school, we conducted a survey of teachers to find out which brand of phone is the most popular in our school Zaliznyak M.V. Teacher of chemistry and biology Varnina N.A. Teacher of Russian language and literature Kuporosova S.A. Mathematics teacher Dronova V.V. Physics teacher Vorobyova L.V. school director T.V. Kochetkova History and social studies teacher O.B. Zubanova English teacher E.E. Malyugina English teacher Loginova E.A. Computer science teacher Mikutskene N.S. Physics teacher, deputy Director for educational work Shvetsov A.A. Life Safety Teacher
Based on the results of our survey, we found out what brands of telephones the students and teachers of our school use. Conclusion: Teachers and students are accustomed to buying brands from trusted manufacturers, such as: Nokia, Samsung.
We went to cell phone stores and asked questions like: What are the most common brands in your store? What are the latest phone brands out there?
From this we learned that the most popular phone brands in the MTS, Megafon, Beeline, Tele2 stores are Samsung and Nokia. the latest brands: Samsung Galaxy Note 2, Samsung Galaxy S3, Samsung Galaxy S4, Nokia Lumia 920, Sony Xperia ZL, LG Google Nexus, HTC One
We found out which are the most used cellular operators in our school and showed the results in a diagram. Teachers use cellular operators that have been popular for a very long time and are not used to changing them. Students choose an operator based on the benefits of the tariff plan. MTS and Tele2 are especially popular. Conclusion:
What is a cell phone for? Based on a survey of 71 people, we found out that: A) to access the Internet - 48 people B) to communicate with relatives - 71 people C) for entertainment - 40 people D) to communicate via SMS - 45 people D) to perform operations using the organizer - 50 people E) for listening to music - 57 people G) voice information - 14 people
Survey results: Conclusion: the majority of respondents in our school use the phone to access the Internet, communicate with relatives, listen to music and perform operations using an organizer
We asked the respondents: “What harm, in their opinion, does a cell phone bring?” a) electromagnetic radiation that is harmful to health - 56 people b) “Expensive pleasure” and not always high-quality communication - 33 people c) creation of radio interference by various radio-electronic devices - 34 people d) distracts students during lessons - 37 people e) causes accidents due to inattentive drivers and pedestrians - 55 people e) is the cause of an attack for the purpose of profit - 52 people
Survey results: Conclusion: Most students believe that the telephone is: a source of electromagnetic radiation that is harmful to health; the reason for the attack for the purpose of profit; cause of accidents due to inattentive drivers and pedestrians.
The effect of cell phones on the human body Radiation from cell phones damages areas of the brain associated with learning, memory and movement. If a person talks on a cell phone daily for more than 45-60 minutes, then headaches appear. Research by scientists in Norway and Denmark has shown that cellular users are most susceptible to drowsiness, irritability, and headaches. In a year, vision will drop by 12-14% if you use the phone for a long time.
During a prolonged conversation, there is an increase in the temperature of the ear, eardrum, adjacent tissues and the adjacent area of the brain. Scientists have found that the risk of developing a tumor in the ear to which a mobile phone is applied is 3.9 times higher than in the opposite ear. Swedish physicists from Linköping University have suggested that electromagnetic radiation from mobile phones can damage red blood cells - erythrocytes, increasing their interaction with each other.
Health status of children who use phones Conclusions: Cell phones are necessary in everyday life; Cell phones have a negative impact on human health; You need to know the rules for using a cell phone and not neglect them in order to protect your body from harmful effects.
Recommendations for Cellular Phone Use Turn off your phone in areas where its use is prohibited, where additional regulations apply, or where it may cause radio interference or be hazardous (hospitals, etc.). Radio waves may have a negative effect on the operation of all mobile phones. Don't wear your cell phone on your body! When dialing, keep the phone at a distance. Each conversation should last no more than three minutes, the break between calls should be at least 15 minutes. Use the hands-free function and devices with Bluetooth wireless technology or write SMS. The main thing is to move the phone away from your head.
As a result of the study, we conclude: The telephone allows us to communicate with people over long distances, access the Internet and many other opportunities, but at the same time, the telephone is harmful to our health, so we must follow the rules for using a cell phone. We propose to post our recommendations on the school stand.
List of sources used http://www.mforum.ru/phones/tests/090440.htm http://mirsovetov.ru/a/hi-tech/cellular-phone/cellular-phone.html http://ru.wikipedia .org/wiki/Cell_phone#.D0.92.D0.BE.D0.BF.D1.80.D0.BE.D1.81.D1.8B_.D0.B1.D0.B5.D0.B7.D0. BE.D0.BF.D0.B0.D1.81.D0.BD.D0.BE.D1.81.D1.82.D0.B8 http://ua-molod.com/articles/168-vliyanie-sotovogo -telefona.html http://www.mobimag.ru/Articles/284/Vstrechayut_po_dizainuIstoriya_dizaina_sotovyh_telefonov.htm 01/06/2009
The influence of a cell phone on human health Authors of the project: Dorogin M, Mironova L. Head: teacher of the Streletskaya Secondary School Municipal Educational Institution Popova T.N Relevance of the topic: We can no longer imagine our life without cellular communications. Currently, the pressing question is whether cellular communications and transmitting antennas have a harmful effect on human health. Hypothesis: If the industry produces cell phones, then they are harmless. Purpose: To find out whether cellular communications and transmitting antennas have a harmful effect on human health, or should we not be afraid of anything? Tasks:
1. Identify the main sources of electromagnetic waves.
2. Find out how EMFs affect human health.
3. How does cellular communication affect human health and child health in particular.
4. How to protect yourself from electromagnetic waves.
Progress of the study:
1. We remembered what EMF is and the main sources of EMF.
2. We found out how the EMF of cellular communications affects human health.
4. We studied the impact of cellular communications
A) on human health, b) on child health.
6. We learned how to protect ourselves from cell phone electromagnetic waves.
What is EMF?As we know, the source of the electromagnetic field is an accelerated moving charged particle.
By definition, it is a special form of matter,
Main sources of EMF Among the main sources of EMF we can list: 1. Electric transport (trams, trolleybuses, trains,...). 2. Power lines (city lighting, high-voltage,...). 3. Electrical wiring (inside buildings, telecommunications,...). 4. Household electrical appliances 5. Television and radio stations (broadcasting antennas). 6. Satellite and cellular communications (broadcasting antennas). 7. Radars. 8. Personal computers. A situation has arisen of global The situation of global exposure to electromagnetic fields of the entire population has arisen. We cannot see or feel electromagnetic fields, but we must know that EMFs are constantly present in the office, apartment and on vacation, that is, practically everywhere. cellular
- The main elements of a cellular communication system are base stations (BS) and mobile radiotelephones (MRT).
- The system uses the principle of dividing a certain territory into zones, or “cells,” with a radius of usually 5–10 kilometers.
- Charts show that young children's brains are much more vulnerable to electromagnetic radiation than adult brains
1. Do you have a mobile phone and at what age did you purchase it?
2. Average call time on a mobile phone.
3.What do you use your mobile phone for:
a) for communication
b) for communication and entertainment?
4. Does a mobile phone affect your health?
Survey results:
- Among the students surveyed, the average conversation time for boys was 16 minutes per day, and for girls it was 22 minutes.
- This indicator varied among respondents from 2 to 180 minutes.
A huge number of adults and children voluntarily expose their bodies to electromagnetic radiation when using a mobile phone.
There is a situation of global exposure of the entire population to electromagnetic fields.
For the first time in the entire period of civilization, massive, regular electromagnetic radiation is occurring.
How to protect yourself from EMF Organizational measures for protection from EMF include: 1. selection of operating modes of emitting equipment that ensures a minimum level of exposure, 2. limiting the place and time of stay in the EMF action area (protection by distance and time), 3. designation and fencing areas with increased levels of EMF Remember!
- The radiation from a mobile phone is most dangerous when searching for a network;
- Do not use your cell phone unless necessary;
- Talk continuously no more 3 – 4 minutes;
- Do not allow the device used by children;
- Do not place your phone charger at the head of the bed at night;
- Do not carry your phone in your pants pocket or on a chain on your chest;
- when purchasing, choose a cell phone with a lower maximum radiation power;
Resources used:
- N.S. Purysheva and others. Physics 9th grade, M., "Bustard" 2009
- K.E. Suorz “Extraordinary physics of ordinary phenomena” T.2., M., “Science”, 1987
- www.vrednost.ru
- en.wikipedia.org
- www.mobiset.ru
- bio.1september.ru
Thank you for your attention.
I wish you success
at work
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