I had a recent discussion with someone who was yet another witness to some odd stuff going on in a mountain in the Northeastern US. What was attracting the reported UFO/alien activity? Well, upon further questioning, the mountain was a source of quartz and zinc mining. That had me wondering about the UFO/mountain connections often reported where they are heavily witnessed along mountains and mountain ranges. So, I looked up zinc - Zinc oxide nanoparticles have the ability to absorb electromagnetic waves. They can be used as an absorbing material throughout the electromagnetic spectrum . This makes zinc oxide nanoparticles useful within military and commercial applications as a high-performance invisible material for absorbing extremely high frequency (EHF) millimeter wave (MMW), visible light and infrared. Its usefulness also extends to radioactive shielding for mobile phones and other devices. ( SOURCE LINK ) Hmmm... if you were considering hiding a base in the groun...