Radium components: compounds of barium, which gave a brilliant green flame color, and unknown radioactive compounds which gave carmine spectral lines that had never been documented before. The Curies found the radioactive compounds to be very similar to the barium compounds, except that they were more insoluble. This made it possible for the Curies to separate out the radioactive compounds and discover a new element in them. The Curies announced their discovery to the French Academy of Sciences on 26 December 1898. The naming of radium dates to about 1899, from the French word "radium", formed in Modern Latin from "radius"
Discover Financial Discover Financial Discover Financial Services, Inc. is an American financial services company that owns and operates Discover Bank, which offers checking and savings accounts and credit cards. It also owns and operates the Discover and Pulse networks, and owns Diners Club International. Discover Card is the third largest credit card brand in the United States, when measured by cards in force, with nearly 50 million cardholders. Discover is currently headquartered in the Chicago suburb of Riverwoods, Illinois. Sears introduced the Discover credit card in 1985 in conjunction with real estate franchise Coldwell, Banker & Company and brokerage firm Dean Witter