OK, this is a trick question -- 'SOS' doesn't stand for anything at all. Learn the history of these three terms, including what astronomy and telegraphy have to do with it, in today's episode of BrainStuff, based on this article: https://people.howstuffworks.com/am-pm.htm; https://people.howstuffworks.com/what-does-sos-mean.htm

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Fainting goats don't really faint -- their muscles just lock up for a few extra seconds when they startle or get excited. Learn how myotonia works and why it can actually be a useful trait in goats in this episode of BrainStuff, based on this article: https://animals.howstuffworks.com/mammals/fainting-goat.htm

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Although a little air pollution can bring out brilliant colors in sunsets, most of it just causes a washed-out haze. Learn how both sunsets and smog work in this episode of BrainStuff, based on this article: https://science.howstuffworks.com/environmental/green-science/smog-sunset.htm

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When Albanian dictator Enver Hoxha started building concrete bunkers during the Cold War, it was part paranoia and part propaganda. Learn more about these mysterious bunkers and how they're being repurposed today in this episode of BrainStuff, based on this article: https://history.howstuffworks.com/european-history/albania-bunkers.htm

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Since the early days of space exploration, some of NASA's greatest have pulled some great pranks. Learn about our favorites, from a smuggled sandwich to a space gorilla, in this episode of BrainStuff, based on this article: https://science.howstuffworks.com/ridiculous-history-5-nasa-greatest-pranks.htm

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When you shiver, your fingers and toes go numb, or you get goosebumps in the cold, that's actually your body trying to keep you warm. Learn how it works -- and how you habituate to chilly temperatures over time -- in this episode of BrainStuff, based on this article: https://health.howstuffworks.com/human-body/systems/nervous-system/body-learn-frigid-temperatures.htm

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The War of 1812 between the U.S. and the British Empire ended in a stalemate, but it established the U.S. as an independent nation and economic power -- and allowed Americans to colonize the West. Learn more in this episode of BrainStuff, based on this article: https://history.howstuffworks.com/historical-events/war-1812.htm

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Geoducks are large clams that can live for over a century, are eaten as delicacies, and look incredibly NSFW. Learn more about these amazing mollusks in today's episode of BrainStuff, based on this article: https://animals.howstuffworks.com/marine-life/geoducks.htm

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Van Gogh didn't find fame or financial success during his life. But after he died, his widowed sister-in-law, Johanna van Gogh-Bonger, worked for decades to bring his life and work to the spotlight. Learn more about her in this episode of BrainStuff, based on this article: https://history.howstuffworks.com/historical-figures/johanna-van-gogh-bonger.htm

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Building muscle isn't just about getting ripped -- it's a way all of us can be healthier. Learn about the facts and fictions behind building muscle (aka mucle hypertrophy) in this episode of BrainStuff, based on this article: https://health.howstuffworks.com/wellness/diet-fitness/exercise/hypertrophy.htm

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