From Mathew Brady’s Civil War photographs, to some of the first images of Earth in space, photography has shaped the way we see ourselves. Which means that when photographic technology changes and progresses, it can really shift our self-image. Ainissa Ramirez is a scientist and the author of The Alchemy of Us: How Humans and Matter Transformed One Another, and she was previously on Innovation Hub to talk about how materials science altered the way we think about time. Now, she tells the fascinating story of how people shaped photographs and how those photographs then shaped us. And that story begins with an incredibly rich man betting on horses.