it's funny that glassblowers still call their sodium-blocking glass 'didymium glass' 138 years after von welsbach discovered that didymium doesn't actually exist, isn't it
Cool call-out there, I hadn't realized praseodymium and neodymium are actually short for praseodidyium and neodidymium ("green" and "new" didymium, respectively). Having all three of those words multiple times writing out this comment, I totally understand why the extra "id" was eventually dropped for the elements' formal names.
