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This vessel is a water container designed for chicks, featuring a small hole in its body.
It was made so that each time the chicks peck, a controlled amount of water collects in a small dish positioned in front of the opening.
The water does not overflow due to air pressure; instead, as the chicks drink, the water level is automatically replenished by the same amount.
This onggi vessel was ingeniously designed to regulate the supply of water.
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