Electromagnetic fields are all around us in many forms and are found in the most visible thing: the transmission of electrical energy. Electrical energy passes through wires, broadcasted radio signals and our household appliances are all culprits of the visible light phenomenon that is known as electromagnetic fields. EMF is one constant and is always consistent as it you cannot have EMF without both an electrical field and a magnetic field. ... http://www.squidoo.com/cell-phone-radiation-blocker Wed, 15 Feb 2012 12:04:13 -0600 FeedCreator 1.7.2 Sun, 08 Jun 2008 18:48:39 -0600 http://www.squidoo.com/cell-phone-radiation-blocker Electromagnetic fields are all around us in many forms and are found in the most visible thing: the transmission of electrical energy. Electrical energy passes through wires, broadcasted radio signals and our household appliances are all culprits of the visible light phenomenon that is known as electromagnetic fields. EMF is one constant and is always consistent as it you cannot have EMF without both an electrical field and a magnetic field. The frequency at which an electromagnetic field occurs is varied and spreads across what is known as the electromagnetic spectrum. Sun, 08 Jun 2008 18:48:39 -0600