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trixayyyyy t1_j1c7wx0 wrote

Reply to comment by YogurtclosetFirst456 in Mars' ancient atmosphere may not have had much oxygen after all by pecika

I thought methane had a smell because of farts. Are farts even made of methane?

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Ancient_Bags t1_j1c9qfz wrote

Farts are flammable due to methane. Sulfur is more of an eggy smell. Leaking car batteries are a pretty potent example. Mountain homes with well water often have H2S (hydrogen sulfide) in higher amounts. This is what makes the water smell like absolute crap and taste awful.

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Possible-Highway7898 t1_j1cccbv wrote

Some farts contain methane. Not all.

Per Wikipedia: Not all humans produce flatus that contains methane. For example, in one study of the faeces of nine adults, only five of the samples contained archaea capable of producing methane

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Rupertfitz t1_j1db3ur wrote

Hydrogen sulfide is the fart smell. But methane is what makes farts flammable ETA: upon further research I’ve learned that farts can travel about 10 feet per second, or approximately 6.8 miles per hour. Just wanted everyone else to know.

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