Submarine from grapes. Effective trick and its solution

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Submarine from grapes. Focus Secret

Spectacular tricks and their clues

Directory / Spectacular tricks and their clues

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Focus Description:

Grapes either sink or float in sparkling water.

Focus secret:

Grab a glass of fresh sparkling water or lemonade and toss a grape into it. It is slightly heavier than water and will sink to the bottom. But gas bubbles, similar to small balloons, will immediately begin to sit on it. Soon there will be so many of them that the grape will pop up.

But on the surface, the bubbles will burst and the gas will escape. The heavy grape will again sink to the bottom. Here it will again be covered with gas bubbles and rise again. This will continue several times until the water "exhales".

According to this principle, a real boat floats up and rises. And the fish have a swim bladder. When she needs to dive, the muscles contract, squeezing the bubble. Its volume decreases, the fish goes down. And you need to get up - the muscles relax, dissolve the bubble. It increases and the fish floats up.

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