Water molecules between two layers of graphene arranged themselves in a lattice of squares — unlike any other known form of ice. NPG Press via YouTube hide caption

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Scientists Discover A New Form Of Ice — It's Square

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Most historians agree that Galileo's famous experiment atop the Leaning Tower of Pisa never took place. So how did he arrive at and support his alternative to Aristotelian dogma? Hulton Archive/Getty Images hide caption

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