How many of you heard that the human soul weighs 21 grams? This came from a doctor in the early 1900’s – Dr. Duncan MacDugall – who weighed six patients who were dying and determined that within a few moments of death each person lost 21 grams. I know you think that 6 is such a small number, but remember this is 1907 and he tried but could not get anyone else to participate in the study. He also tested animals and found no difference in weight leading to his belief that animals do not have a soul. Although his results are generally thought to be false, the idea of our souls weighing 21 grams is still a part of popular culture and belief.
Step forward to the 1930’s where a physicist named Dr. Watters would put insects or small animals into a cloud chamber, kill them, and immediately take a picture inside this sealed container.”According to Watters, in all the tests where the creature permanently died, even after eight hours of observation, a “shadow phenomenon” appeared in the chamber coinciding with the shape of the creature. However, if the animal revived, no condensation figure would appear on the photograph.” (Forgotten Experiments by John Mount)
But what about today – is there any modern research into the soul?
In 1988, Noetic Science carried out experiments on the largest number of patients and concluded that the human soul weighs 1/3,000th of an ounce. The experiments were carried out by East German researchers Dr. Mertens and Dr. Fisher who weighed more than 200 terminally ill patients just before and immediately after their deaths. In each case the weight loss was exactly the same – 1/3,000th of an ounce. This is approximately 0.01 gram. “After ruling out air releasing from the lungs and and instantaneous physical deterioration, the only thing left was a soul or some kind of life force” says Dr. Mertens. He has been trying to identify what this form of energy might be and in 2006 wrote a book called “Dark Plasma Theory” proposing that the soul is made up of dark matter particles.
A gentlemen by the name of Dr. Konstantin Korotkov is a Professor of Physics at St. Petersburg State Technical University in Russia. He has published over 70 papers in leading journals on physics and biology, and he holds 12 patents on biophysics inventions. In 1996, he developed the Gas Discharge Visualization (GDV) Bioelectrography camera measures the human energy field. It is said to capture the soul as it is escaping the body after death. 
“The images show the soul easing from the body before the patient’s image becomes red. Notice that initially the midrift is sapped of life force, the head follows, and then finally the heart and groin area lose their energy and the soul has fled the deceased person’s body.” (http://usahitman.com/photo-soul/) He did not put a weight on this soul, only showing that it exists. You can buy a GDV camera if you like and Dr. Korotkov is alive today.
I did not realize that Dan Brown in this book “The Lost Symbol” touches on this topic. He does like to touch on intriguing questions, so this might be a fun book to read.
Let us know your thoughts.