What happens to a fan if I turn it on in an airless room. Does it work, what does it move, or does the fan fail?

Answer

Best,

I’ve been thinking about your question. Firstly, it is clear that the fan has no function in such a case. But that fan is driven by an electric motor and friction is created in the bearing of the fan. In other words, the whole thing will heat up and the only way to get rid of that heat in a vacuum is through radiation. That will be insufficient, so something will melt. but it will not burn, because there is no oxygen.

Come on, that’s what I think.

kind regards