Doughnuts have been around in some form for thousands of years, but a lot had to happen to make them the near-ubiquitous snack they are today. Learn about the history of doughnuts in this episode of BrainStuff, based on these articles: https://recipes.howstuffworks.com/5-things-didn-t-know-about-doughnuts.htm; https://history.howstuffworks.com/historical-events/ridiculous-history-vitamin-donuts.htm

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Owls' ability to fly almost silently gives them an air of mystery, but the science is in their wings and feathers. Learn how they do it in this episode of BrainStuff, based on this article: https://animals.howstuffworks.com/birds/owl-fly-silently.htm/printable

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Calamity Jane has a reputation for being one of the wildest women in the Old West, but it's hard to separate historical fact from fiction. Learn more about this sharp-shooting adventurer in today's episode of BrainStuff, based on this article: https://history.howstuffworks.com/historical-figures/calamity-jane.htm

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The Ring of Fire is a loop around the Pacific Ocean that's a literal hotbed of volcanoes, earthquakes, hydrothermal vents, and other geologic activity. Learn how the interactions among tectonic plates cause all this mayhem in today's episode of BrainStuff, based on this article: https://science.howstuffworks.com/environmental/earth/geology/ring-of-fire.htm

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In a bustling plaza in the heart of Paris, Napoleon Bonaparte commissioned the Arc de Triomphe as a monument to his victories -- but he didn't live to see it completed. Learn more about its history in this episode of BrainStuff, based on this article: https://science.howstuffworks.com/engineering/architecture/arc-de-triomphe.htm

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Charles "Pretty Boy" Floyd was a fairly common criminal until he got involved in shootout with federal agents in 1933. Learn about his life and crimes in this episode of BrainStuff, based on this article: https://history.howstuffworks.com/historical-figures/pretty-boy-floyd.htm

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It's not just malice -- there are several psychological reasons why people get so mean and angry online. Learn what experts say (and how to stop the cycle) in this episode of BrainStuff, based on this article: https://science.howstuffworks.com/life/inside-the-mind/human-brain/psychological-reason-mean-on-internet.htm

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The pink fairy armadillo looks like a fantasy illustration and is so elusive that it's practically mythical. Learn what we know (and don't know) about them in this episode of BrainStuff, based on this article: https://animals.howstuffworks.com/mammals/pink-fairy-armadillo.htm

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