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... ir burned by the flame! So I have to calculate first, what is the weight of all of us plus the weight of the bamboo basket, and then calculate the absolute heat. How big do the balloons need to be."
"If you make it too small, it may not be able to fly, or it will fall down halfway through the flight!"
"In addition, the gauze of the hot air balloon needs to be airtight and airtight! So later, I need to get some pine oil to apply on it. In this way, the weight of the hot air balloon ...
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