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Watch What Happens to Magnetic Objects Inside an MRI Machine

Anyone who’s gotten an MRI scan knows that bringing metal into the machine would be a bad move. That’s because the process, short for magnetic resonance imaging, uses a large magnet and radio waves to scan the organs inside your body. Patients must be screened before entering the room to ensure they're not carrying any objects that might react to the machine. But what would happen if something magnetic did make it inside?

This video from UC Berkeley’s “practiCal FMRI” demonstrates exactly that. Before an MRI machine was decommissioned, a group scientists decide to conduct some fun experiments with it. The clip shows a steel shackle being bounced around by the force of the 4 Tesla magnet, and a stapler banging against its walls until it comes apart. When they position a chair with magnetic wheels near the entrance of machine, it’s pulled towards it with a force that reaches 2000 pounds. If you’ve ever wondered why they don’t allow metal objects into the MRI room, this should give you a pretty clear idea.

All images via YouTube.

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26 Facts About LEGO Bricks

Since it first added plastic, interlocking bricks to its lineup, the Danish toy company LEGO (from the words Leg Godt for “play well”) has inspired builders of all ages to bring their most imaginative designs to life. Sets have ranged in size from scenes that can be assembled in a few minutes to 5000-piece behemoths depicting famous landmarks. And tinkerers aren’t limited to the sets they find in stores. One of the largest LEGO creations was a life-sized home in the UK that required 3.2 million tiny bricks to construct.

In this episode of the List Show, John Green lays out 26 playful facts about one of the world’s most beloved toy brands. To hear about the LEGO black market, the vault containing every LEGO set ever released, and more, check out the video above then subscribe to our YouTube channel to stay up-to-date with the latest flossy content.

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Of Buckeyes and Butternuts: 29 States With Weird Nicknames for Their Residents
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Tracing a word’s origin and evolution can yield fascinating historical insights—and the weird nicknames used in some states to describe their residents are no exception. In the Mental Floss video above, host John Green explains the probable etymologies of 29 monikers that describe inhabitants of certain states across the country.

Some of these nicknames, like “Hoosiers” and “Arkies” (which denote residents of Indiana and Arkansas, respectively) may have slightly offensive connotations, while others—including "Buckeyes," "Jayhawks," "Butternuts," and "Tar Heels"—evoke the military histories of Ohio, Kansas, Tennessee, and North Carolina. And a few, like “Muskrats” and “Sourdoughs,” are even inspired by early foods eaten in Delaware and Alaska. ("Goober-grabber" sounds goofier, but it at least refers to peanuts, which are a common crop in Georgia, as well as North Carolina and Arkansas.)

Learn more fascinating facts about states' nicknames for their residents by watching the video above.

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