3 ms·
The spontaneous combustion part here feels bit weird; I imagine the phenomenon is more like when you hit metal with angle grinder and sparks fly out, where the
by zokier 4y ago
The spontaneous combustion part here feels bit weird; I imagine the phenomenon is more like when you hit metal with angle grinder and sparks fly out, where the abrasive action heats the particles up to ignition point. At least I wouldn't call that very spontaneous.
- lupire 4y agoThe author's claim is that the powdered metal oxidizes, not directly abraded. https://en.m.wikipedia.org/wiki/Pyrophoricity https://en.m.wikipedia.org/wiki/Pyrophoricity