Spinning a marshmallow over a fire is effective maybe if you hang it over the fire and heat it up equally on each side
Weight. As a scientific term Weight is referred to as the force that Earth and objects have with each other. Your weight can be different on other planets.
Answer: The result of "the upper bound of the density" does not go on the denominator.
So simplified, no. The answer is no.
The pressure of the air at the way its blowing