Anonymous ID: 3cf87d June 20, 2025, 7:15 p.m. No.23211798   ๐Ÿ—„๏ธ.is ๐Ÿ”—kun   >>1915 >>2199 >>2302

https://en.wikipedia.org/wiki/Kopp-Etchells_effect

When a speck of metal is chipped off the rotor, it is heated by rapid oxidation. This occurs because its freshly exposed surface reacts with oxygen to produce heat. If the particle is sufficiently small, then its mass is small compared to its surface area, and so heat is generated faster than it can be dissipated. This causes the particle to become so hot that it reaches its ignition temperature. At that point, the metal continues to burn freely.