Science toy - submarine

When submariners sink, they are forced into tanks filled with ocean water. As a result, they sink as a result of this weight. They accept as much as they need to go as far as they want. When they want to return to the surface, they inject pressurized air into tanks to remove the water.

當潛水艇人員沉沒時，他們被迫進入充滿海水的水箱中。 結果，它們由於這個重量而下沉。 他們需要多少就接受多少，想要走多遠就走多遠。 當他們想要返回水面時，他們將壓縮空氣注入水箱中以除去水。