North Korea Arirang Mass Games 40000 animated backdrop

North Korea created giant animated images using thousands of people

At North Korea's Arirang Mass Games, huge crowds performed synchronized gymnastics and dances. Behind them, thousands of participants held colored cards that changed together to form enormous moving images. The display functioned like a human-powered video screen, turning individual movements into pictures visible across an entire stadium.

IPv6 creates an almost unimaginably large number of addresses

3.4 × 10^38 addresses

IPv4 provides about 4.3 billion possible addresses. IPv6 uses much longer 128-bit addresses, raising the number to about 3.4 × 10^38.

Cold, salty seawater can sink through the ocean

Seawater gets heavier when it becomes colder or saltier. In places where surface water becomes cold and salty enough, it sinks beneath the water around it and helps drive deep ocean currents.

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North Korea Arirang Mass Games 40000 animated backdrop

North Korea created giant animated images using thousands of people

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