# How does a ceiling fan blades redirect air throughout a room to cool you off?

I already know how a table fan works because of how the blades are angled. For a ceiling fan I am confused about how the blades cut through air to cool off things in a room?

• I am mostly confused about the blades cutting through and blowing air part of the question. – Ethan Sep 11 '15 at 6:46
• Ceiling fans don't cool rooms. The evaporation of sweat on your skin cools you. – CuriousOne Sep 11 '15 at 6:52

See, basically it is an application of Bernoulli's Theorem if you already didn't know it. Bernoulli's Theorem states that $P + \rho gh + \frac{1}{2} \rho v^2$ = constant where the symbols have the usual meanings.You can check it here if you want. For constant $h$, we can say that $P + \frac{1}{2} \rho v^2$ = constant i.e. $P$ varies as $\frac{1}{v^2}$.