Xiaoming designed an automatic water supply device for the bonsai at home. Fill a plastic bottle with water and pour it into a bonsai. The bottle has just been flooded. When in the basin ...
This is due to atmospheric pressure, 1 standard atmospheric pressure =1.01325×10.5pa = 10.336m water column, that is, if the water column height in the bottle does not exceed10.336 m. If air enters the bottle, in order to balance the change of water pressure in the bottle caused by air entry, some water will flow out until the bottle mouth is submerged again and enters the pressure balance state.