wine glass tank by japanese designer kouichi okamoto. device consists of a bulb shaped container with the glass below. when the amount in the glass decreases, a constant amount is poured from the tank into the glass. never overflowing from the glass because of air pressure and water pressure.
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wine glass tank by japanese designer kouichi okamoto.

device consists of a bulb shaped container with the glass below. when the amount in the glass decreases, a constant amount is poured from the tank into the glass. never overflowing from the glass because of air pressure and water pressure.

Source: kyouei-ltd.co.jp