What is the secret of lightning photography?

Since ancient times, there have been many records or reports about lightning "photographing". For example:1892 July 19, in Pennsylvania, USA, two black people took shelter from the rain under a tree in Helen Park and were killed by lightning. The victim's chest left a natural scene in a corner of the lightning location, and a dry brown rubber tree and ferns hidden in the grass were faintly discernible in the picture.

Mysterious lightning

1June, 896 17, two French workers were sheltering from the rain in the shed when suddenly a flash of lightning flashed and they fell to the ground and died. Lightning vividly printed "photos" of pine trees, poplars and the straps of the deceased on the arm of the deceased.

1957, a female worker was working in a thunderstorm in a pasture in the United States, when suddenly the thunder was loud and the female worker felt chest pain. After unbuttoning her clothes, she was surprised to find the image of a cow on her chest.

1976, in Michigan, USA, a farmer was rushing to beat his large group of black cats when suddenly lightning struck violently and killed all the black cats. At the same time, farmers were also injured. His wife hurried to take care of him, only to find that there was a clear "angry cat picture" on his bald head: a black cat bared its teeth and glared at his eyebrows, which was vivid. She quickly brought soap, detergent, etc. Wash away this terrible image for her husband, but it can't be washed away. The next day, this "black cat photo" gradually faded.

Why does lightning "take pictures"? This question was debated in19th century, but there is no satisfactory answer so far.

Some scholars believe that the shed in the deceased's residence may be equivalent to a studio, and lightning plays a "perspective" role. If yes, what is the specific mechanism of "photography"? In addition, why is this lightning "photography" selective to the subject? Why can it penetrate clothes and print on the human body? This is still a mystery.