Ah yes, the warmth of the fire after a long days hike, the sizzle and pop of burning wood on a summers night, and mountains of cinders glowing so bright.
And then, your lungs are suddenly filled with a thick acrid smoke and your eyes become blood-shot.
Have you ever been sitting around the campfire and it seems that no matter where you settle down with your chair, the smoke tends to follow you?
I was told that there was a reason for this. It had something to do with your body temperature creating a small vacuum around you, drawing the heat and smoke toward you.
Obviously, wind speed would have to be zero for this to be accurate.
So my question is: If there is no wind, will there be a difference in the direction of the majority of smoke rising off of a campfire if a person is present or not present around it? Will body size or temperature (or any other factors of an animal being near a small fire) draw smoke toward him or her?