Puzzle master Will Shortz quizzes one of our listeners, and has a challenge for everyone at home. (This week's winner is Ed Rush from Los Osos, Calif. He listens to Weekend Edition on member station KCBX in San Luis Obispo.)
NPR's Puzzlemaster Will Shortz has appeared on Weekend Edition Sunday since the program's start in 1987. He's also the crossword editor of The New York Times, the former editor of Games magazine, and the founder and director of the American Crossword Puzzle Tournament (since 1978).
The scientists look at electrons in atoms during the tiniest of split seconds, giving "humanity new tools for exploring the world of electrons," according to the Royal Swedish Academy of Sciences.
For 54 years, the six episodes of A Complete and Utter History of Britain were in vaults of British channel ITV. The unarchived episodes are only available in the U.K. for now.