To counter the distance drawback, more cell towers are being built to ensure proper signal propagation. What are the long term financial and environmental costs of this required infrastructure?
⌾ Theoretically, as you move across the EM spectrum, you move from non-ionizing radiation (harmless) to ionizing radiation (can cause cellular/DNA damage with prolonged exposure). Ultraviolet radiation, X-rays, and gamma rays are well known to be hazardous in large quantities. This is not to imply that 5G is harmful, but it does raise the question as to what point on the spectrum does EM radiation become a public safety hazard? Currently, Health Canada’s recommended limits for human exposure to non-ionizing radiofrequency (RF) is the 3Khz to 300 GHz range (24 hours a day/ 7 days a week/ 365 days a year) - basically the entire radio wave and microwave portion of the EM spectrum. So, theoretically safe as far as we know.
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INFRARED WAVES
Infrared waves have wavelengths in the EM spectrum, ranging from about 700 nanometers to 1 millimeter (1 million nanometers) and equivalent frequencies ranging from about about 400 THz (400,000 GHz or 400 quadrillion Hz) down to 300 GHz.
"Near-infrared light" (or short-wave infrared) is closer in wavelength to visible light and is commonly used in remote controls and imaging systems. In contrast, "far-infrared" (or long-wave infrared) is closer to the microwave region of the EM spectrum.
The heat that we feel from sunlight or a fire, or the heating lamps used to warm food are all infrared. In fact, any object which has a temperature radiates in the infrared. Even objects that we think of as being very cold, such as an ice cube, emit infrared. The warmer the object, the more infrared radiation it emits.
Humans, at normal body temperature, radiate most strongly in the infrared at a wavelength of about 10,000 nanometers.