Pat, I think your measurements are a bit off. I believe you mean GJ not MG for the amount of energy from a barrel of oil. Average dietary (or at least recommended intake in the U.S.) is 2000 kcal or about 6.8 MJ per day.
Also, when it comes to cost, you are confusing energy with work. The human cost represents work done and the value of that work which includes far more than the energy used to produce it. I get paid for the output of my brain. It is not based on the amount of energy used to make my brain work. Phil On Wed, Jul 9, 2008 at 11:05 PM, Pat Naughtin < [EMAIL PROTECTED]> wrote: > Dear All, > Could you check this calculation for me please? It doesn't look right. > > 6 000 000 joules รท 16 kJ/day = 375 days > > This calculation is based on these ideas. > > The energy content of a barrel of oil is about 6 megajoules (Cost about 140 > $/barrel). > > A man working hard (heavy activity) uses food energy at a rate of 16 kJ/day > (Cost about 110 $/day basic wage rate in Australia). > > So one barrel of oil is the equivalent of one man working hard for 375 > days, which is 75 weeks, or full time for about a year and a half. > > Oil energy cost: $140 > > Human energy cost: $41 250 > Cheers, > > Pat Naughtin > > PO Box 305 Belmont 3216, > Geelong, Australia > Phone: 61 3 5241 2008 > > Metric system consultant, writer, and speaker, Pat Naughtin, has helped > thousands of people and hundreds of companies upgrade to the modern metric > system smoothly, quickly, and so economically that they now save thousands > each year when buying, processing, or selling for their businesses. Pat > provides services and resources for many different trades, crafts, and > professions for commercial, industrial and government metrication leaders in > Asia, Europe, and in the USA. Pat's clients include the Australian > Government, Google, NASA, NIST, and the metric associations of Canada, the > UK, and the USA. See http://www.metricationmatters.com/ > <http://www.metricationmatters.com/>for > more metrication information, contact Pat at > [EMAIL PROTECTED] or to get the free '*Metrication > matters*' newsletter go to: http://www.metricationmatters.com/newsletter/to > subscribe. > >
