how can electromagnetic waves be harmful?
440669
Over-exposure to certain types of electromagnetic radiation can be harmful. The higher the frequency of the radiation, the more damage it is likely to cause to the body: microwaves cause internal heating of body tissues. infrared radiation is felt as heat and causes skin to burn.
1092087
There are two types of EMF exposure. Low-level radiation, also called non-ionizing radiation, is mild and thought to be harmless to people. Appliances like microwave ovens, cellphones, Wi-Fi routers, as well as power lines and MRIs, send out low-level radiation.
829951
Cell phones emit radiofrequency radiation (radio waves), a form of non-ionizing radiation, from their antennas. Parts of the body nearest to the antenna can absorb this energy.
813724
They are electromagnetic waves with wavelengths just shorter than those of visible light. Advantages: In small quantities they help your body produce vitamin D. Disadvantages: They can cause sunburn or even skin cancer if used in large quantities.
212495
Electromagnetic waves can be split into a range of frequencies. This is known as the electromagnetic spectrum. Examples of EM waves are radio waves, microwaves, infrared waves, X-rays, gamma rays, etc.
6689
Millimeter-wave scanners use radio waves and produce no ionizing radiation. When we talk about radiation, we're usually referring to ionizing radiation, which has the energy and other properties capable of damaging DNA and leading to cancer. In very high doses, ionizing radiation can cause burns and even kill.
1406295
Radio waves are transmitted easily through air. They do not cause damage if absorbed by the human body, and they can be reflected and refracted to change their direction. These properties make them ideal for communications.
144384
Definition: Electromagnetic waves or EM waves are waves that are created as a result of vibrations between an electric field and a magnetic field. In other words, EM waves are composed of oscillating magnetic and electric fields. ... They are also perpendicular to the direction of the EM wave.
481168
Radio frequency radiation is found to have more thermal related effects. A person's body temperature can be raised which could result in death if exposed to high dosage of RF radiation. Focused RF radiation can also cause burns on the skin or cataracts to form in the eyes.
106062
Electromagnetic (EM) radiation is a form of energy that is all around us and takes many forms, such as radio waves, microwaves, X-rays and gamma rays. Sunlight is also a form of EM energy, but visible light is only a small portion of the EM spectrum, which contains a broad range of electromagnetic wavelengths.
124991
The extremely high energy of gamma rays allows them to penetrate just about anything. They can even pass through bones and teeth. This makes gamma rays very dangerous. They can destroy living cells, produce gene mutations, and cause cancer.
125058
Propagation of an Electromagnetic Wave Electromagnetic waves are waves which can travel through the vacuum of outer space. ... Electromagnetic waves are created by the vibration of an electric charge. This vibration creates a wave which has both an electric and a magnetic component.
491176
Health concerns over mobile phone use If RF radiation is high enough, it has a 'thermal' effect, which means it raises body temperature. There are concerns that the low levels of RF radiation emitted by mobile phones could cause health problems such as headaches or brain tumours.
714959
Electromagnetic waves cause oscillations in electrical and magnetic fields. They do not need matter to travel through.
263968
Scientists call this ionizing radiation. In general, the shorter the wavelength, the greater the danger to living things. Although longer wavelengths also have their hazards, very short wavelengths, such as X-rays and gamma rays, can easily damage living tissue.
1441427
The electric and magnetic forces in EMFs are caused by electromagnetic radiation. There are two main categories of EMFs: Higher-frequency EMFs, which include x-rays and gamma rays. These EMFs are in the ionizing radiation part of the electromagnetic spectrum and can damage DNA or cells directly.
688993
People are at an increased risk for adverse health effects from cell phone radiation. Cell phones cause electromagnetic radiation which causes cancer to the human body. In the recent study of scientists, cell phones are proven to cause brain cancer.