BrainStuff

Water usually appears clear, but ice cubes and ice on lakes often looks cloudy. Learn what has to happen for ice to freeze clear (like black ice does on roads) in this episode of BrainStuff.

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What is silica gel? Why are packets of it included in lots of packaging? And what would happen if you ate it? Learn how silica gel keeps moisture at bay in this episode of BrainStuff. 

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For some, winter means a daily battle against cracking, peeling lips. Learn what causes this -- and what you can do to prevent it -- in this episode of BrainStuff.

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It's a dreaded part of job interviews: "What did you make at your last job? What are your salary requirements?" Learn the science behind navigating this tricky topic in today's episode of BrainStuff.

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The End Of The World with Josh Clark is a 10-part podcast series on existential risks – threats that could bring humanity to a sudden and untimely end in the near future. Check out this preview, featuring a clip about our potential to spread from Earth. Listen and subscribe at Apple Podcasts, or on the iHeartRadio app, or wherever you listen to podcasts.

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Bulletproof vests have certainly saved lives, but exactly how bulletproof are they? Learn what they're made of and how they can fail to protect wearers in this episode of BrainStuff.

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Genetics says "probably." In this episode of BrainStuff, learn what researchers found when they submitted supposed Yeti samples for genetic testing.

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Computer systems can indeed help traffic flow better by syncing stop lights' cycles. But how well does it work, and what does it take to implement? Learn how researchers hope to get you out of traffic jams in this episode of BrainStuff.

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Cannabidiol (CBD) oil, derived from cannabis, is being touted as a treatment for everything from migraines to insomnia. But how effective is it? Learn what research has (and hasn't) shown in this episode of BrainStuff.

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A battle between two brothers created the second- and third-largest sneaker companies in the world. Learn the story of the brothers Dassler in this episode of BrainStuff.

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