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The spectrum of electromagnetic radiation is comprised of waves or particles that carry different amounts of energy. The visible spectrum is what humans and most animals see. The least energetic range of electromagnetic ... More »

www.reference.com Science Physics Magnetism

Electromagnetic waves carry electromagnetic energy, also known as electromagnetic radiation, through matter, empty space, momentum and angular momentum. Depending on their frequency and wavelength, electromagnetic waves ... More »

www.reference.com Science Physics Optics & Waves

Some characteristics shared by all electromagnetic waves are that they all travel at the speed of light and their transmission does not need a medium. These wave types can also travel through empty spaces. More »

www.reference.com Science Physics Optics & Waves
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Electromagnetic radiation is energy that comes from a wide variety of sources. It comes in a broad spectrum of wavelengths, frequencies and energies. Scientists break the electromagnetic spectrum into several different c... More »

www.reference.com Science Physics Magnetism

Electromagnetic waves carry electromagnetic energy, also known as electromagnetic radiation, through matter, empty space, momentum and angular momentum. Depending on their frequency and wavelength, electromagnetic waves ... More »

www.reference.com Science Physics Optics & Waves

To reduce the dose of ionizing radiation absorbed from electromagnetic radiation, it is important to minimize the time exposed, be as far as possible from the source and take shelter behind an adequate shield. These thre... More »

www.reference.com Science Physics Magnetism

The fundamental source of electromagnetic radiation is the vibrational interaction between an electric field and a magnetic field. This phenomena is driven by the motion of electrically induced particles propagating thro... More »

www.reference.com Science Physics Magnetism