Tiny Russian coils (aliens, light, vision, ancient)

[RocketDawg]

Just turned to a repeat episode of "Ancient Aliens", and they're talking about very tiny coils found deep underground in the Ural Mountains of Russia, and made with exotic metals. Is there any truth to this? This television program is the only place I've heard this mentioned.

This falls under the Unexplained Mysteries part of this subforum, not the Paranormal.

[D. Scott]

Ive heard about the giant couldrons but not the coils. The couldrons were rumored to have destroyed the object thay exploded over Tunguska. Maybe an underground civilizations technology is being discovered?

[fisheye]

Here is a YouTube from 2017:
https://www.youtube.com/watch?v=6I0HQ_x-xfA. What I don't like about this is that the principal researcher is dead and nobody knows the location where the tiny coils were collected. The video does mention that several institutions studied the tubes; maybe they could shed some light on the subject?