| I'm sending this out both to share an older Friday File with you that I've unlocked, and also for a more serious reason -- if you haven't already, I hope you'll consider signing up for an Irregulars membership as we close in on the end of our charitable giving campaign (midnight to tonight is the cutoff). Thank you! We do love our free readers, too, and it's OK if you don't want to join us... I'd still like you to see what the Casey folks were teasing as a CO-27 play (that's cobalt, for those who are a few years removed from chemistry class). We sniffed out their cobalt teaser in the Friday File on October 6, and I've re-released that below, just click to... |
