Why dont low density objects like nylon not fly into the air with more density?

Question

According to this Website Nylon has a density between 1.11 to 1.18 g/cm3. Air on see level has a density of 1.225 g/cm3. So why does nylon not fly into the air like a helium balloon?

Sorry for this stupid question. I have to reduce my medication. It kills my brain.

Floris · Answer

Sorry - your have your orders of magnitude wrong.

Air density is about 1.225 g / liter (which is a dm$^3$ if you were keeping score), or 1.225 mg/cm$^3$. So air is 1000 x less dense than nylon.

user145377 · Answer

Your air is denser than water (which has 1g/cm³) so why doesn't the Red Sea part and rise?

You need to fix your air density: you are off by about 3 orders of magnitude.

Why dont low density objects like nylon not fly into the air with more density?

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