Originariamente inviato da COLENZO
il polonio è un isotopo
del radio


210Po

This isotope of polonium is an alpha emitter that has a half-life of 138.376 days. A milligram of 210Po emits as many alpha particles as 5 grams of radium. A great deal of energy is released by its decay with half a gram quickly reaching a temperature above 750 K. A few curies (1 curie equals 37 gigabecquerels) of 210Po emit a blue glow which is caused by excitation of surrounding air. A single gram of 210Po generates 140 watts of power.[7] Because it emits many alpha particles, which are stopped within a very short distance in dense media and release their energy, 210Po has been used as a lightweight heat source to power thermoelectric cells in artificial satellites. A 210Po heat source was also used in each of the Lunokhod rovers deployed on the surface of the Moon, to keep their internal components warm during the lunar nights. Some anti-static brushes contain up to 500 microcuries of 210Po as a source of charged particles for neutralizing static electricity in materials like photographic film.[8] 210Po has very rare properties as an unstable isotope, as it decays only by emission of an alpha particle, not by emission of an alpha particle and a gamma ray

http://en.wikipedia.org/wiki/Polonium

A me interessano soprattutto i danni e le sofferenze fisiche che provoca; ho qualche sassolino nella scarpa da togliermi e trovo questo un metodo un pò diverso dai soliti di togliersi qualche soddisfazione con chi ti sta sulle palle.