Dodał: ytigor30
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It should warm up the bottle with warm water - pour hot water to the bottle. Then place a balloon on the bottle. Cool the air inside the bottle by pouring a bottle of cold water. Cooling reduces the pressure inside the bottle. Followed by suction to the balloon inside.
It should warm up the bottle with warm water - pour hot water to the bottle. Then place a balloon on the bottle. Cool the air inside the bottle by pouring a bottle of cold water. Cooling reduces the pressure inside the bottle. Followed by suction to the balloon inside.
