Gallium is super rare, really useful in LEDs and smartphones, and will melt in your hand -- but won't boil until it hits 4000 degrees Fahrenheit. Learn more in this episode of BrainStuff, based on this article: https://science.howstuffworks.com/gallium.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