Joan Clarke, the cryptanalyst war-heroine, and the women of Bletchley Park (you never heard of)
Joan Clarke Murray codebreaker at Bletchley Park during World War II, became deputy head of Hut 8 in 1944. Code breaking was almost exclusively done by men during the war. Clarke was paid less than the men and felt that she was prevented from progressing further because of her gender. She was a English cryptanalyst and numismatist ~
Music made visible, by Matt Booth. He uses song data to create visual representations of the music. I love the ideas of reinterpreting sounds as visual art, and of using data to determine color and composition.