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I always understood that a smell is caused by minute particles of the substance being emitted at a rate relative to the stability and temperature into the air thereby entering the nasal passage of recipient. The question is, do you inhale obnoxious particles that you would normally repel.


What gives smell to those odorous chemical compounds Your nose and your brain. First of all, there are just some molecules flowing through your nose. There are many receptor neurons that react to those molecules and send "signals" to your brain. In the end, you smell something. It's the same with light: light really is just an electromagnetic wave of ...

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