The Sad Story of Lead and Astatine

Lead is the stable end-product of three major nuclear decay chains. In fact, it has the highest atomic number (82) of all the non-radioactive elements. Astatine, on the other hand, is so unstable that it is the rarest naturally-occurring element in the Earth's crust. Its nucleus is so fragile that only microscopic quantities of the…Read more The Sad Story of Lead and Astatine


Crotchety Man has never been religious. He found the prevailing Christian teachings unconvincing and with so many other religions peppered across the spiritual landscape, all offering the One True Way™, it seemed foolish to commit to any one of them. Then, back in 2010, he came across the website for the British Humanist Association. The…Read more Annobon