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EMF Glossary Definition


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In the context of electricity, “ground” or “earthing” refers to a reference point in an electrical circuit from which voltages are measured, a common return path for electric current, or a direct physical connection to the Earth.

  1. Ground in Electrical Circuits:
  • Reference Point: Ground serves as a zero-voltage reference point. In a circuit, it’s the point against which all other voltages are measured.
  • Return Path: It often acts as a return path for electrical current, allowing it to flow back to its source in a circuit.
  • Safety Mechanism: Grounding provides a safe path for excess electric current to flow into the Earth, which is important for protecting users from electric shocks and preventing damage to electrical equipment. In case of a fault (like a short circuit), the grounding system provides a pathway for the current to disperse safely into the Earth, rather than passing through a person or causing a fire.
  1. Grounding in Building and Electrical Codes:
  • In buildings and electrical installations, grounding is a critical safety feature. Proper grounding is mandated by electrical codes to ensure safety and functionality. This includes grounding electrical outlets, appliances, and other components to prevent electrical hazards.
  1. Earthing in Health and Wellness:
  • Apart from its technical use in electricity, “earthing” or “grounding” is also a term used in alternative health and wellness practices. In this context, it refers to the practice of connecting physically with the Earth’s surface (like walking barefoot on the ground) with the belief that this connection can transfer the Earth’s electrons to the body. Proponents of this practice claim various health benefits, such as reducing inflammation, improving sleep, and enhancing well-being.
  • The concept here is that direct contact with the Earth can help balance the electrical state of the body. However, it’s important to note that the health-related claims of earthing are not widely supported by mainstream medical research.

In summary, in the realm of electricity, grounding is an essential safety feature for electrical systems, providing a safe path for excess current and helping to protect against electrical hazards. In the context of health and wellness, earthing is a practice based on the idea of reconnecting with the Earth’s electrical potential for perceived health benefits.

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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.

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R Blank