If you get small enough, you start getting into the territory of dust explosions. https://en.m.wikipedia.org/wiki/Dust_explosion https://en.m.wikipedia.org/wik

If you get small enough, you start getting into the territory of dust explosions. https://en.m.wikipedia.org/wiki/Dust_explosion https://en.m.wikipedia.org/wiki/Dust_explosion Another interesting phenomenon is spontaneous combustion where exothermic reactions get hot enough to start the combustion process in a medium. https://en.m.wikipedia.org/wiki/Spontaneous_combustion#:~:text=Spontaneous%20combustion%20or%20spontaneous%20ignition,temperatures)%20and%20finally%2C%20autoignition https://en.m.wikipedia.org/wiki/Spontaneous_combustion#:~:te.... I was a fire engineer in a past life, forgot the science but remember the cool phenomenons.