I recently watched a docuseries on Netflix (now restored in full color 😂) and in one of the episodes, they showed pictures of shadows etched into the ground? How is this possible? Aren’t shadows an absence of light? Did the ground in the surrounding area burn and change color making the shadow look like it was etched in?
In: Physics
Basically, yes. The initial flash was bright enough to bleach stone and other surfaces that survived the blast, but if there was something in the way to cast a shadow the surface wasn’t bleached there. There are some claims that it’s carbon left behind from vaporized bodies, but the shadows were left by items that survived the blast as well, so it wasn’t that.
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