In the 1960s, the U.S. Central Intellience Agency tried to turn a cat into a cyborg secret agent with implanted audio equipment. Learn more in this episode of BrainStuff, based on this article: https://history.howstuffworks.com/historical-events/acoustic-kitty.htm

American Versus British English: What Are Biscuits, Muffins, and Pudding?
09:51

How Do Sunspots Work?
14:22

Did the Lost Continent of Lemuria Really Exist?
11:05