Quote Originally Posted by majicbar View Post
The body grows cold by dissipating heat, which would travel upwards but it would raise ambient temperature of the air above the body, creating dryer warmer air, not colder more moist air. So yes it would be "impossible"; clearly you meant just, 'possible': double negative rule.

French experiments were done at the end of the 1800's as to weight loss of a body at death, the accounted for all these factors and found slight weight loss upon death, but no change to the air at all.
If the corpse is no longer generating heat, heat radiation would cease very quickly.
Replaced by a drop in temperature.
"Fog" is just a hypothetical, IMHO more likely than a spirit photo.

BTW, how much does a soul weigh, according to those researchers you mentioned?

That test was performed in the 19th century. Anything more recent?

Double negative.
I plead 430am, first cup of coffee syndrome. Sorry if I confused you. Thanks for the grammar check.