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

Something Different

Crotchety Man lives in two parallel worlds. There's the real world of solid objects like houses, apples and people. Then there's the insubstantial world of the imagination. The other day, at the click of a mouse button, a bubble of the imagined world burst into the mundanity of real life. My computer screen had given a link into a province of La La land…Read more Something Different