Recent content by Sarcina

Thank you very much.

Thank you. So a spinning fan creates regions where there are less air molecules than ambient air as well as regions where there are more air molecules than ambient air; I guess this will change the density of the macroscopic air particles near the fan? Does this mean that to determine the...

My understanding is that when a fan begins spinning, a partial vacuum is created. Physically, what creates this partial vacuum? Does the motion of the blades create a void in which there are fewer air molecules than in the ambient air and thus the pressure is lower than the ambient pressure?