Cans make preserving and transporting food and drinks simple, but canning technology is very complex. Learn the history of pull-tabs and can openers in this episode of BrainStuff, based on this article: https://money.howstuffworks.com/food-cans-pull-tabs.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