[ Click here for an interactive EM spectrum

Types of EM Waves Radio Waves AM and FM Radio Radar – Radio Detecting and Ranging MRI – Magnetic Resonance Imaging Click here for a Radar animation

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Types of EM Waves Microwaves Microwave Ovens heat food by vibrating water molecules. Satellite Communications and GPS systems Cell Phones Click here for cell phone SAR ratings

Types of EM Waves Infrared Waves These carry thermal energy (heat) Thermal Photographs [

[ Thermal Imaging shows infrared waves… Night Vision amplifies available light waves…

Types of EM Waves Visible Light The only EM wave humans can see, it produces the colors around us.

Types of EM Waves Ultraviolet Waves Can cause sunburn and skin cancer, but also needed for skin to produce Vitamin D. Can kill bacteria.

Types of EM Waves X-Rays Can travel through soft tissue, but are stopped by bones to make medical “X-Rays” Airports to inspect luggage. [

Types of EM Waves Gamma Rays Ultra-High frequency waves that can break molecular bonds. Radiation therapy can kill diseased cells, but if not controlled can also kill healthy cells.