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Submission + - MPG of a human (ucsd.edu)

InterGuru writes: "Tom Murphy, blogging from UCSD in his Do the Math blog asks
' I am curious to know how potent human fuel can be. How many miles per gallon do we get as our own engines of transportation? '

He finds, after accounting for the energy intensity of American agriculture, which uses ten units of energy to get one unit of food energy, walking consumes 18-34 MPG of oil equivalent, and biking comes in at 70-130 MPG.
Maybe if we switched to a more vegetarian diet, we could improve on this."

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MPG of a human

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"It says he made us all to be just like him. So if we're dumb, then god is dumb, and maybe even a little ugly on the side." -- Frank Zappa

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