the number of air density in a childs balloon is roughly the same as sea level air, 10^19 particles/ cm ^3. if the balloon is now 18 cm in diameter, to what diameter in km would it need to expand to make the gas have the same density as ISM, about 1 particle/cm^3
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the number of air density in a childs balloon is roughly the same as sea level air, 10^19 particles/ cm ^3. if the balloon is now 18 cm in diameter, to what diameter in km would it need to expand to make the gas have the same density as ISM, about 1 particle/cm^3
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