20 April 09

I wore the same periodic table tie--on a different shirt--one year ago, commemorating the 1902 identification of radium by Marie and Pierre Curie. This time we can throw in yesterday's celebration of Glenn Seaborg's birthday, in 1912. He became famous as the discoverer of plutonium (#94, at the bottom right corner of the tie detail) and nine other "transuranium" elements, including element 106 which is now named Seaborgium.