An ominous photo has been posted a few times on Reddit, showing fire damage attributed to a glass doorknob illuminated by sunlight.
Any thoughts after seeing the linked photo? Could you convince a jury of the doorknob’s guilt or innocence?
At first glance, it’s a bit of a mystery, since a ball-shaped lens would focus sunlight very close to its surface, not a couple of feet away. There appears to be a burn mark on the knob. Glass doesn’t burn, so it must have been from something flammable that was in direct contact with it. Also, note the burn mark farther down the door. This suggests that something long enough to reach that point was draped over the metal part of the doorknob – something wide enough to contact the hotspot, but not wide enough to block illumination from the other side, so possibly a scarf or a light shirt. If the door was more or less closed and there were clothes or papers stacked in the corner, perhaps the flames spread from the the draped object to that corner, causing the damage shown.
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