2 ms·

Why? They don't seem related in any way, beyond there being a hot thing.

• cma 4y ago
  He might be thinking of where they poured boron sand on it, or built a graphite topped concrete pad underneath. And then the later concrete encapsulation.
  • themitigating 4y ago
    Another possibilities is that he's trying to exaggerate the dangers of lithium batteries for political or cultural reasons.
• janef0421 4y ago
  Because the heat source was hard to cool down, had to be contained using concrete, and the incident contaminated the surrounding area.
  • nomel 4y ago
    > and the incident contaminated the surrounding area. This is not comparable, besides the words being the same.