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Astronauts on the ISS Put a GoPro in a Sphere of Water

Being up on the International Space Station isn't all work (although the scientific experiments they've run are pretty cool!). There's some time to play around, too, as you can see in this video of NASA astronauts Steve Swanson and Reid Wiseman and European Space Agency astronaut Alexander Gerst popping a sealed GoPro camera into a bubble of water. Technically, what they're doing is "explor[ing] the phenomenon of water surface tension in microgravity," but it just looks like a lot of fun to us.

Astronauts also filmed the action in 3D as part of an initiative to show people back on Earth a more realistic view of what it's like to live and work in the ISS (you'll need red-blue stereoscopic 3D vision glasses to watch these videos). The 3D camera was sent up with the crew of STS-351 in 2011 to document the last flight of the space shuttle and has been in orbit since then.

According to Rodney Grubbs, the program manager for NASA's Imagery Experts Program at NASA's Marshall Space Flight Center in Huntsville, Alabama, "shooting in 3D hasn't changed much in 50 or 60 years. The camera still has two distinct left and right lenses, but now we record to two separate flash memory cards, one for the left camera eye and one for the right. We don’t have to transmit taped footage and re-record it here. We can simply download an exact copy of those digital files to the ground, merge them in our editing software here, and create the same 3D image they had in orbit."

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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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