Electromagnetic Radiation

Warm objects emit infrared radiation, which falls within the electromagnetic spectrum between visible light and microwaves. Infrared radiation is responsible for the sensation of warmth felt from objects such as a heated pan or a glowing ember.

Electromagnetic waves carry energy in the form of electromagnetic radiation. This energy is a combination of electric and magnetic fields that propagate through space at the speed of light. The energy carried by electromagnetic waves depends on their frequency and intensity.

Infrared radiation is used with optical fibers because it is less prone to attenuation (loss of signal strength) in the fiber compared to visible light. Additionally, infrared radiation is less affected by external factors like ambient light, making it more reliable for long-distance transmission through the fiber.

Radiation-induced anemia is typically due to damage to the bone marrow, resulting in a decrease in red blood cell production. This type of anemia is called aplastic anemia, where the bone marrow fails to produce enough blood cells.

Electromagnetic waves are made up of particles called Photons.
Electromagnetic waves carries by the small particles named "Photon".
Electromagnetic waves are made of photon charges, E=hf=hc/r = zQ2c/r, where Q is the photon charge= 4/3 E-18 Coulombs = 8 1/3 Electrons=(13U,1d) Quark.
an electric field and a magnetic field that are orthogonal to each other and oscillating at the same frequency.

When an absorbed dose of radiation is multiplied by a quality factor, the exposure dose to a person is reported in sieverts (Sv). The sievert is the unit of measurement for the health effect of radiation on the human body, taking into account both the type of radiation and the tissue sensitivity.

Gamma rays have a higher frequency than visible light. Gamma rays are a form of electromagnetic radiation with the highest frequency and energy in the electromagnetic spectrum, while visible light falls in the middle range of the spectrum.

UV radiation from the sun penetrates the Earth's atmosphere and is divided into UVA, UVB, and UVC rays. UVC rays are absorbed by the ozone layer, while UVA and UVB rays reach the Earth's surface. UVB rays cause sunburn and skin cancer, while UVA rays penetrate deeper into the skin, causing premature aging and contributing to skin cancer risk. Long-term exposure to UV radiation can damage DNA, leading to mutations and skin cancer.

The ozone layer, located in the stratosphere, is bombarded with rays from the sun. These rays include ultraviolet (UV) radiation, which is absorbed and scattered by the ozone molecules in this layer, providing important protection for life on Earth from the harmful effects of excessive UV exposure.

While cell phone radiation has been suspected by some of causing cancer, and untreated cancer can kill, no physical mechanism for the emissions to cause cancer has been proposed and studies of people using cell phones have not shown an increase of cancer rates. So at this point the science says the chances are slim to none.

yes so is am fm radio and tv signals

They all have..

-a density field (B)

-(In radio-/TV-waves) They change between electrisity and magnetism.

-The area they cower is determined by the power used, to create them.

-They have abilities:

....Equlal poles (North North ... South South) - pushes.

....Not Equal Poles (North South) - drags.

-There is no known limit to how far they can be stretched.

(If the planet Earth should be destroyed, it could be registrated,

millions of lightyears away - in the very same second, as it happened

here.

I.E. Every substance has a delay. Magnetic forces seemes to be the

only exeption.)

When light interacts with matter, it can transfer energy to the matter through processes like absorption, scattering, or reflection. This interaction can cause the light to change direction, slow down (in a medium), or even transfer its energy to the matter, influencing its motion or electronic state.

Advantages:

1. Helps protect and preserve biodiversity.
2. Supports research and education.
3. Provides opportunities for recreational activities like hiking and birdwatching.

Disadvantages:

1. Restricts human activities and land use.
2. May face challenges with funding and management.
3. Limited access for local communities.

Ozone (O3) is the primary atmospheric gas that absorbs ultraviolet (UV) radiation in the stratosphere. It forms a protective layer that helps shield the Earth from harmful UV rays. Other gases like oxygen (O2) and nitrogen (N2) absorb some UV radiation, but to a lesser extent compared to ozone.

Lowering the wavelength of incident light increases its energy, which in turn can increase the kinetic energy of the emitted photoelectrons. This is in line with the photon energy equation E=hf, where E is energy, h is Planck's constant, and f is frequency (which is inversely proportional to wavelength).

Frequencies higher than 60Hz are frequently used. Although there are radio waves lower than 60Hz, all of our radio transmissions are well above that.

If you mean why frequencies for mains power supply above 60Hz can't be used, the answer is, they can. The higher the frequency though, the higher the loss although this doesn't really come into play until frequencies above several hundred Hz are used. 50Hz or 60Hz were chosen originally because of the mechanical nature or early generators.

The electromagnetic spectrum includes radio waves, microwaves, infrared, visible light, ultraviolet light, X-rays, and gamma rays. These rays have different wavelengths and energies, with gamma rays having the shortest wavelengths and highest energies. Each type of ray is used for different applications ranging from communication (radio waves) to medical imaging (X-rays).

The layer of gas molecules in the Earth's atmosphere that is bombarded with rays from the sun is the thermosphere. This layer is where ultraviolet and X-ray radiation from the sun interact with the gas molecules, leading to ionization and high temperatures.

"Radiant" just means energy that can move from one place to another without

a medium to carry it. So any form of electromagnetic 'radiation' qualifies. That

includes heat, light, and radio, generated by things such as:

-- toaster

-- light bulb

-- fireplace

-- microwave oven

-- TV remote

-- garage-door opener

-- CB radio

-- the sun

-- tanning light

-- camera strobe

-- GPS satellite

-- TV satellite

-- car headlight

-- steam-iron

Gamma rays would predominate in an enclosed elevator descending into a uranium mine.

Gamma rays typically have frequencies above 1019 Hz, exhibiting energies above 100 keV and wavelength less than 10 picometers. Some gamma radiation, such as that from radioactive decay. may have energies of a few hundred keVto less than 10 MeV. Gamma rays from astronomical sources can be over 10 TeV.

In open space, infinitely far from material objects, the radiation pattern of a half-wave

dipole is a torus (donut), with the radiator (wire) passing straight through the center

of the hole. The field strength is maximum in all directions perpendicular to the wire,

and zero in the directions off the ends of the wire. The peak field strength is +2.2 dB

relative to isotropic.

Scrap heap magnets are basically electromagnets. Electromagnets are magnets that can be turned off and on. When they are turned on, the circuit inside them, (which normally consists of a battery, a switch, coiled wire and an iron rod) switches on. The iron rod inside the coils of wire is magnetized once the switch can be on or off. Mechanically an electromagnet is relatively simple. As soon as you apply a small electric current it becomes magnetized. The copper wire produces a magnetic field around the core just like any other magnet. The advantage is that it can be turned on or off.

The only magnetic elements are iron, cobalt and nickel. This means that electromagnets can only attract those metals. They can also attract steel. This is because it is mainly made of iron. This is useful because it helps sort the metals into allocated locations. However they cannot pick up paper, wood or any other metal that is not magnetic, or made out of iron, cobalt and nickel.

Scrap Heap magnets work by a very simple but effective circuit board which is in them. The circuit board includes:

- A switch (To turn the electromagnet on/off)

- A battery (To power the electromagnet so there is a current flowing through it)

- A iron rod (This is the component that is magnetized.)

- Coiled wire around the rod (the current)

When a scrap heap magnet is turned on by the switch, the iron core is magnetized because of the current flowing though it due to the coiled wire and battery. This makes it magnetized and it is able to pick up any metals that are magnets and its able to place them in their designated areas in the scrap heaps.