Monthly Archives: September 2008

Think about an ordinary man on an ordinary day. He drives to work using 1.5 tons of steel, with an engine strong enough to carry two cows to the slaughterhouse, does some work in some office, using some 3 GHz machine to answer some emails and print some forms. Later that day he goes home, where roughly 400 cubic meters of air and some more of wood and concrete are heated to comfortable 23 degrees Celsius, to provide a comfortable evening for 0.1 cubic meters of person.