The ancient and inaccessible: the moon and the periodic table
Next week I am off to St. Petersburg (Russia, not Florida) to give an invited lecture at the 4th International Conference on the Periodic Table — a celebration of the 150th anniversary of Dmitri Mendeleev’s proposal that the chemical elements could be laid out in a table where elements in each row (now columns) shared many properties. This periodicity of properties led this method of organization to be called a “periodic table.” Pope Paul VI in one of the Vatican Observatory’s domes reading a message to the Apollo 11 astronauts. The lecture I’ve been asked to give is based on an essay I wrote for Nature Chemistry earlier this year, “Isotopic Enrichment” (Isotopes are variants on elements. For example, carbon-14 dating tracks the radioactive decay of a heavier than normal variant of a carbon atom. Most carbon is carbon-12, where the number indicates the mass of a single atom,) The title of this blog post comes from an article ten years ago in … Continue reading →