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Have you ever wondered what would happen if you put dry ice in the desert?
This guy gently pushes the dry ice on the sand, and it glides smoothly. However, when he tries the same thing with a rock, it doesn't slide. Surprisingly, when he places the rock on top of the dry ice, it still slides effortlessly.
You see, dry ice is not made of water; it's actually frozen carbon dioxide. Unlike regular ice, it doesn't melt Instead, it sublimates directly into carbon dioxide gas, creating a cushion layer on hot sand.
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