Half a croissant, on a plate, with a sign in front of it saying '50c'
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Fart Combustion

 Draw on methane in the colon to run a fuel cell.
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Let's face it. Your colon is full of bacteria, that are producing gas. It's going to come out sooner or later. There's a lot of energy stored in it, which is why you can ignite an "eruption" of this gas if you have the mind. (The "mind" is usually created by the consumption of alcohol, but we digress.) This energy need not go to waste. It could be removed, via a small implant of some sort or perhaps (for more stoic folks) through a rectal probe. This energy can then run a fuel cell or small internal combustion engine, providing energy that can be used for a multitude of tasks. As an added bonus, you probably won't have much gas left with which to "impress" your fellow man.
—Madcat, Jan 25 2004

HB: Fart Powered Fuel-Cell http://www.halfbake...Powered_20Fuel-Cell
We've done this... against our will. [Laughs Last, Oct 21 2004]

Fart Catheter http://www.halfbake...dea/Fart_20Catheter
also related [Laughs Last, Oct 21 2004]

Everything you ever wanted to know about farts http://www.heptune.com/farts.html
"Bacteria also produce hydrogen and methane. But the relative proportions of these gases that emerge from our anal opening depends on several factors" [Klaatu, Oct 21 2004]


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Annotation:







       HAHA, YES! It's been up for ten seconds and it's been fishboned!
—Madcat, Jan 25 2004
   

       There are 122 fart related ideas on halfbakery. That is what, nearly 1% of all ideas here?
—Laughs Last, Jan 25 2004
   

       We're goin' after that valuable 10-year-old demographic.
—waugsqueke, Jan 25 2004
   

       Then what we need are more ideas for fart based RPGs. Bring it on.
—Laughs Last, Jan 25 2004
   

       How do you propose to allow for the vastly different compositions of flatus that is expelled? <link> CO2, O2, Hydrogen and other gases form the common "fart".
—Klaatu, Jan 25 2004
   

       //It could be removed, via a small implant// Could be a micro turbine so you also recover mechanical energy from the pressure. Still have to figure out how to keep it from clogging with more solid debris.
—kbecker, Jan 26 2004
   


 

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