Re: Is there a liquid that a person cannot float in?

The average density of the human body is a bit less than that of pure water--
because of the gas in the lungs and, to a lesser extent, in the gut. If those 
spaces are filled with water, a person sinks in fresh water--which is why 
people usually recover the bodies of people drowned in lakes or rivers 
by "dragging" the body of water. I think people who drown in the ocean also
sink.

I can think of several liquids in which a living person would sink. They would 
have to have a density less than that of water. What liquids float on water?

                                                   Dan Berger
                                                   MadSci Admin