You go into a room that hasn’t had folks in it for 10 years and there is dust everywhere. I thought it was skin cells but obviously not.
Even rooms with no access to the outside have dust.
In: Mathematics
The second law of thermodynamics states that entropy either stays constant or increases. Entropy can be interpreted as a degree of disorder in a system. So basically, things tend towards a more disordered state rather then an ordered one.
This means that as time moves on, small particles will envitably be released from many materials rather then them all staying in order,. These particles can slowly accumulate, and be viewed as dust. Dust is just a word for material that is smaller than some factor. it can be particles of paint, plaster, dried cement, sand, silt and whatever materials *are* in the room’s boundaries.
This proccess has less to do with the existence of living things like humans, and more to do with natural proccesses evident in nature.
Also, there is dust and spores and bugs and bacteria all present in the air coming in and out of rooms.
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