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Watch How Balls of Steel Are Made

If there’s something more satisfying than watching hyper-specific machinery churn out random parts, I haven’t found it yet. In this behind the scenes video, one of Shandong Iraeta’s factories tirelessly turns giant rods of metal into perfectly spherical balls of steel.

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At one point in the process, the steel balls, which are used in rotating drums as a grinding and polishing material, look like puffy clown noses making their way up a conveyor belt. But in reality that’s just raw steel that’s been heated red-hot to make it malleable. Squeezing a clown’s nose is fun, but squeezing these would make it impossible for you to use a fingerprint reader ever again.

[YouTube via The Awesomer]

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I’ve always liked this.