Popular Mechanics did an interesting fiscal analysis of various gasoline substitution technologies. Even though the only ethanol source listed is from corn, the analysis illustrates how conventional gasoline still tops the charts. Many technologies were compared including E85/ethanol, M85/methanol, B100 biodiesel, compressed natural gas, electricity (EV cars), and Hydrogen fuel cells.
As of May 2006:

 
Raw Materials Consumed
Fuel Needed
Price
Economy

Gasoline
4.5 barrels of oil
90.9 gal
$2.34/gal
33 MPG

Corn Ethanol
53 bushels of corn, 0.5 barrel crude oil
176 gal
$2.41/gal
17 MPG

M85 Methanol
18190 cu ft Natural Gas, 0.5 barrel crude oil
214 gal
$2.89/gal
14 MPG

B100 Biodiesel
16.5 gals of used …

Foster’s is teaming up with scientists at the University of Queensland to convert beer wastewater into energy. They will be building a “fuel cell” powered by bacteria. The bacteria will consume the beer wastewater, which is ripe with all sorts of good stuff: sugar, starch, and alcohol.
The cell will convert the chemical energy into electrical energy. Don’t get too excited, they are talking about a cell that can generate 2 kW of power, enough to only power one home.
Why don’t they take it one step farther? Might as …

According to the WHO, over 150 million people worldwide now have diabetes. The surge is in Type II diabetes, which afflicts adults over 30. Diabetes is one of three major new diseases that hardly existed 100 years ago: diabetes, heart disease, and cancer.
In the May 3rd issue of Human Reproduction, Queen’s University researcher’s show a link between diabetes and low sperm quality. There was no significant difference in sperm concentration, appearance, or mobility. There was a small reduction in sperm volume. But the most significant affect was a higher DNA …