naturalplastic wrote:
Q:What is the composition of a fart?
A: Methane gas.
Farts are mostly nitrogen and hydrogen. The level of methane is actually less then 7% in some of the population and only a bit higher in specific demographics. Often there isn't enough to be flammable it is the hydrogen that lights up. The amount of methane is related to gut Bacteria.
Cows are being given gut bacteria associated with Kangaroos/Wallabies to try an bring down their methane level.
For grass eater kangaroo and wallabies are remarkably efficient and energy conversion for their size.
However it is cow burps that are worse than their farts for methane emissions, apparently.
Methane is also odorless, despite people associating it with smell.
Sulfur based gasses like sulfur dioxide are what give the bad smell. These only have to be is a very small quantity to be detectable.
Last edited by 0_equals_true on 06 Feb 2016, 7:46 am, edited 1 time in total.