answersLogoWhite

0

Depending on the mechanism of death the air can be either missing via crushing or collapse, or replaced via drowning. The rest of the average body under normal conditions is made up mostly of water with slightly higher density over all, hence sinking.

But the body is home to a large amount of independent life, most obviously in the digestive system. When the immune system is compromised as a result of death, these bacteria begin to consume the body as they would normally do with food you eat. This process releases gas as a by-product of metabolism.

Normally this is limited in extent or expelled, but upon death the digestive tract ceases function, these gases build, bacterial populations explode, thus creating pockets that increase the overall buoyancy of the body, and since the body was mostly water to begin with it doesn't take much of a change to cause it to rise.

As an experiment float in a pool and take a deep breath and then let it out slowly paying attention to your sinking a little upon exhalation and rising as your lungs inflate.

User Avatar

Wiki User

13y ago

What else can I help you with?

Continue Learning about Physics

Will human ashes float or sink when spread on water?

Human ashes are typically fine particles and will float on water initially due to their low density. However, they may eventually become waterlogged and sink over time as they absorb water.


Do witches float or sink?

Witches in popular culture are often depicted as being able to float on broomsticks, but in reality, they would most likely sink if they entered the water due to human body density.


What floats and does not float?

A pencil floats, a human no float, a feather floats, paper floats, ice floats, keys do not float, rocks do not float, coins do not, flip flops float. Second answer: I think you meant to ask, 'What floats and then some time later starts to sink. If that is what you meant, the answer is: There are absorbent substances which float when dry, then after absorbing water while they are floating, they increase in density and then sink.


What is the relationship between human buoyancy and the ability to float in water?

Human buoyancy is the ability of a person to float in water. This is determined by the density of the human body compared to the density of water. If the body is less dense than water, it will float. If the body is more dense, it will sink. The relationship between human buoyancy and the ability to float in water is that the more buoyant a person is, the easier it is for them to float on the water's surface.


Will a fork sink or float?

A fork will sink in water, as it is denser than water. The density of an object determines whether it will sink or float in water.