1. Farts get their noxious smell from just 1% of the gas you expel.
Ninety-nine percent of a fart is composed of odorless gases. The remaining 1% — usually sulfurous, like dimethyl sulfide and methanethiol — give farts their pungent aroma.
10. There’s a reason not all farts sound the same.
Variety is the spice of life, right? Flatulence varies in sound due to a variety of factors, namely, the amount of gas, the force at which it is expelled, and the tightness of the sphincter muscles.
12. All the humans that have ever lived have released approximately 17 quadrillion farts. EVER.
All right, so it’s not highly scientific, but when you multiply the number of farts per day by the number of humans ever to have lived by average lifespan by 365, you come up with the 17 quadrillion number.
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