BrainStuff

The term 'Jim Crow laws' refers to laws enacted after the U.S. Civil War to prevent emancipated slaves and other people of color from accessing their full rights as citizens. Learn the history of the term and how these laws affected society in this episode of BrainStuff.

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Voting is an incredibly important way to make your voice heard, but it's very rare for a candidate to win or lose by just one vote. Learn how rare -- and about a few times that it's happened -- in this episode of BrainStuff.

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In Japan during the 1600s, some wealthy households installed purposefully squeaky floors as an alarm system. Learn how nightingale floors work in this episode of BrainStuff.

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In the long run, a black hole will consume any star that crosses its path -- but researchers have found one that should hang on for a few trillion years. Learn more about it in this episode of BrainStuff.

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Police use of tear gas at protests is controversial to begin with because it's so harmful, but these weapons may also help spread the novel coronavirus. Learn why in this episode of BrainStuff.

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We’ve all seen movies with supervillains building catastrophic Doomsday devices – but one exists in the real world, too. In this classic episode, learn how the Cold War led to the most dangerous nuclear system in history: Russia’s 'Dead Hand' Perimeter system.

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There's a lot of hype about high-definition TV, ultra-high definition, and beyond. But does this race to jam more pixels into screens actually matter? Learn more about the human eye and digital resolution in this classic episode of BrainStuff.

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As public spaces begin to open, safety measures to protect yourself and others from COVID-19 are more important than ever. So how could a public pool or beach be safe? Learn about the CDC's recommendations in this episode of BrainStuff.

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The Mason-Dixon Line started as a tax-related land survey -- so how it come to stand as the barrier between slave states and free states during the Civil War? Learn the history of Mason and Dixon -- and how they contributed to science -- in this episode of BrainStuff.

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A study found that nearly half of all U.S. citizens have an immediate family member who's been incarcerated for at least one night. Learn how the numbers break down in this episode of BrainStuff.

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