A very brief comment on ball plasma/lightning.
In physics 'ball plasma/lighting' is an electromagnetic phenomen.
Tiny ball plasma/lighting is seen when e.g. an apparatus is switched on: these sparks are innocent in usual settings, but these sparks are very hazardous in a so-called 'ATEX environment' (explosive, dusty, and/or inflammable vapour environment):
Considerable ball plasma/lightning may occur in nature during 'thunderstorms'; or man-made during high voltage and high current settings.
Henning Kuersten has described and elaborated this phenomen in his book '
The Dyatlov Pass Mystery - NOT a Cold Case'.
The Post Mortem photos in the mortuary show Yuri Dor and Yuri Kri with pronounced 'main vains' on arm (Yuri Dor) and leg (Yuri Kri).
The Post Mortem report of Zinaida states: '
There is a very pronounced venous system on the legs and feet.', while this is not visible on a photo of Zinaida in Swimming suit.
The Google search on keywords 'lightning, strike, victim skin' show many examples of skin injury of victims after being struck by lightning. One example:
These victims show skin injury to the main vains
and to the tiny vains, while the photos of Yuri Kri and Yuri Dor show skin injury or malfunctioning of
only 'main vains'.
It is far more likely that the skin injury or malfunctioning of the main vains of Yuri Kri and Yuri Dor had been
caused by a high speed pressure wave, that had
damaged or 'anesthetised' the valves in these main vessels in arm and leg (preventing the blood being pumped upwards in the body by use of moving muscles).
In theory an enormous ball/plasma strike may cause a high speed pressure wave at some distance, but in daily life a low energy pressure wave (audible as thunder or low rumbling) is heard from (ball) lightning that strikes far away.
The normal thunder caused by lightning travels with the speed of sound (330 m/s), while the high speed pressure wave travels with a speed well above the sound barrier.
A high speed pressure wave may fracture ribcages, while I am not aware of a pressure wave caused by lightning causing fracturing ribcages.
A study of
being struck by lightning mentiones only micro fracturing of bones and no macro fracturing of bones as seen in four group members. See further: '
Harnessing Thor's Hammer: Experimentally induced lightning trauma to human bone by high impulse current'
https://pmc.ncbi.nlm.nih.gov/articles/PMC8710840/