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EMF Glossary Definition

Electromagnetic Spectrum

The electromagnetic spectrum encompasses the entire range of electromagnetic radiation, which varies in wavelength and frequency. This spectrum includes, in order of increasing frequency and decreasing wavelength, radio waves, microwaves, infrared radiation, visible light, ultraviolet radiation, X-rays, and gamma rays. Each type of radiation within the spectrum is characterized by a unique range of wavelengths and frequencies. Radio waves have the longest wavelengths and the lowest frequencies, while gamma rays have the shortest wavelengths and the highest frequencies. Visible light, which is the only part of the spectrum visible to the human eye, occupies a small segment in the middle of the spectrum.

Electromagnetic radiation is a form of energy that is propagated through space as a combination of electric and magnetic waves. These waves travel at the speed of light (approximately 299,792 kilometers per second in a vacuum) and vary in energy depending on their frequency and wavelength. Higher frequency electromagnetic waves, such as X-rays and gamma rays, carry more energy and have the potential to cause more damage to biological tissue than lower frequency waves like radio waves or microwaves.

The electromagnetic spectrum is fundamental to various scientific and technological fields. It plays a crucial role in astronomy for understanding celestial objects, as different types of electromagnetic radiation can provide diverse information about the universe. In medicine, different parts of the spectrum are used for diagnostic imaging, such as X-rays and MRI scans. The spectrum also underpins a wide range of communication technologies, from the long wavelengths used for radio broadcasts to the shorter wavelengths used in optical fiber communications and satellite transmissions. Understanding the electromagnetic spectrum is essential for the development and application of many modern technologies.

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About the Author

R Blank is the CEO of Shield Your Body, which he founded in 2012. With hundreds of thousands of customers in over 30 countries, and having been interviewed on platforms including Dr. Phil, ABC news television and ElectricSense, R is an internationally followed expert on issues of EMF, health and safety. He also hosts “The Healthier Tech Podcast”, available Apple, Spotify and all major podcasting platforms. In the past, he served on the faculty at the University of Southern California Viterbi School of Engineering as well as the University of California, Santa Cruz. Previously, R ran a software engineering firm in Los Angeles, producing enterprise-level solutions for blue chip clients including Medtronic, Apple, NBC, Toyota, Disney, Microsoft, the NFL, Ford, IKEA and Mattel. He has spoken at conferences around the world, including in the US, Canada, New Zealand and the Netherlands, and he is the co-author, along with his father Dr. Martin Blank, of ‘Overpowered‘ from Seven Stories Press about the science of health effects of EMF radiation. He has an MBA from the UCLA Anderson School of Management and received his bachelor’s degree, with honors, from Columbia University. He has also studied at Cambridge University in the UK; the University of Salamanca in Spain; and the Institute of Foreign Languages in Nizhny Novgorod, Russia. Read more about R and SYB or connect with R on LinkedIn.

Have a Question?

I take pride in designing great, effective products, based on real, measurable science – AND taking the time to ensure that each and every one of you has the information you need to understand EMF and make informed decisions.

So if you have a question, just email me and ask.

R Blank
CEO, SYB