At the end of the 19th century Henry Becquerel, and Mr and Mrs Pierre and Marie Curie, with experimental physics they discovered unprecedented physical phenomena which they then baptized with the name of radioactivity. They saw that some minerals, containing uranium and radium had the property of impressing photographic plates which thus showed various dark spots.
The strange phenomenon of “radiation clouds” hypothesized by NASA, if the theory was confirmed, they could seriously put the health of those traveling by plane at risk.
Natural radioactivity increases significantly as we reach very high altitudes. For example, already at 9000 meters the exposure level increases by at least 10 times
Natural radioactivity is present everywhere on our planet. E’ originated from the presence of various radionuclides in rocks and minerals. No less important is the contribution from solar activity and cosmic rays that constantly hit us from the depths of the universe.
