How was radiation discovered?

How did a woman named Marie discover radiation? What do you call the machine at the doctor’s office that takes pictures of your insides? How did Marie Curie use radiation and radioactivity to save lives during World War I? How many Nobel Prizes did Marie Curie win? Want free activity guides and curriculum? Check out www.WhoSmarted.com See omnystudio.com/listener for privacy information. See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.