Bitcoin, How We Read Now, The Princess Spy

Why has Bitcoin become so valuable, and is it too late to get on the bandwagon? Also, why we remember stuff better if we’ve read it in print rather than on a screen. Then, the story of Aline Griffith, a young fashion model who ended up becoming an American spy and a Countess. Additionally on today's show: how a mechanical nose is learning to detect diseases just as good as trained dogs, and where to look for books that can show kids the amazing contributions of women in the world.