DRIP… SECONDS

DRIP... SECONDSIn addition to the hourglass, there are more structurally similar water. Their simplified version can be made and most. Enough to take two graduated bottles for baby food and to connect them with their necks in one tube, which is inserted two thin tubes, so that their opposite ends do not reach the bottom of the bottle. Time can be tracked for graduation or to apply a special scale by looking at the clock.

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