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The Anatomy of a Fart

We've all dealt them and smelled them, but what is the science behind them?

Ian Cohen
The Anatomy of a Fart

Chemical Makeup of the Average Fart

● 59% nitrogen, 21% hydrogen, 9% carbon dioxide, 7% methane and 4% oxygen—all essentially odorless. (Less than 1% is what makes farts stink.)

The Stench Comes...

● ...from minuscule amounts of ammonia, hydrogen sulfide and excrement, which can be smelled at 1 part per 100 million parts air.

The Gas...

● ...that gives farts that special stench is hydrogen sulfide.

The More Sulfur-Rich...

● ...your diet, the more your farts will stink.

Foods that...

● ...cause your flatulence to reek include beans, cabbage, cheese, eggs and soda.

Beans, Cabbage...

● ...mushrooms and onions cause a lot of gas because they contain complex sugars that your body can’t digest.

Throwin’ Heat

● Farts have been clocked at a speed of 10 feet per second.

Fill ’er Up

● 1 quart (or 600 ml) - the average amount of gas a guy with a relatively healthy diet lets out every day

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