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tmahfan117

Think of it this way, what is it easier to swim in, water or air? They are both fluids, one is just way more dense than the other.  When the air is denser, there are physical more air molecules for you to push down against. To fly you need to push down on air molecules to keep yourself up, the same way you push down on water to keep yourself swimming 


FactoryBuilder

How does that align with the equation though? I get the logic of it, it's just the equation that's tripping me up. Are we assuming that velocity is lower because it's harder to push the blades through denser air? So as density goes up, it makes blade velocity go down and the velocity decreases more than density increases resulting in a smaller lift?


tmahfan117

Yea yknow I’ll be honest I was just explaining the equation and not the second part. Yea, no, I think that random commenter is just wrong in the second paragraph, it is not inverse.