Gallery: Giant Flip Books Are Hiding in the Woods of New Hampshire
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Summer campers built jumbo-sized split-flap displays and installed them in a forest in New Hampshire.
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The machines work like traditional split-flap displays like you see in airports and train stations.
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A hand crank powers the split-flaps.
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At night you can see the mechanisms, which includes a giant wheel that the flaps hook into.
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The outside of the box is mirrored to blend into its surroundings.
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The boxes glowing at night.
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