Fortune Telling Collection - Horoscope - How long can a flying doll last once it is full?
How long can a flying doll last once it is full?
1 to 5 days.
The flying doll hydrogen balloon is a lightweight bag-like or bag-like object filled with hydrogen, which is the lightest and has a density of 0.0899 g per liter. It can float up by the buoyancy of hydrogen, 1 dissipates naturally after 5 days.
Flying doll is a new type of toy among network celebrities. It is made of soft silica gel, has induction and glows at night.
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