It MAY seem ridiculous, but in the hunt for sources of alternative energy researchers have come up with fuel cells which are powered by cheese-or at least whey, a by-product in cheese making.

"Cottage cheese provides two different types of protein: whey and casein," Carlucci says.

Cheese is the solid clots that through the enzyme reaction, casein protein precipitation, and then discharges the whey from the curd.