Superfluid Appears to Defy Gravity
![](https://bigthink.com/wp-content/uploads/2014/03/origin-47.jpg?w=480&h=270&crop=1)
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In the 1930s, scientists were baffled by liquid helium, which, at extremely low temperatures, exhibited strange behaviors. Learn more about this amazing superfluid by watching this short video clip from BBCFour:
Image credit: JoeFutrelle/Flickr
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