My wife and I had just been discussing the fact that the ability of oil to do work for us is unparalleled, when I stalled the car at about the 60m mark of our country driveway. We decided to get out and push - just to drive the point home. The energy available in a single barrel of oil is equal to 25,000 hours of human labour – or 12.5 years at 40 hours per week! Yet all that work is sold (at the time of writing) for $53USD. To conceptualize this for yourself, consider the amount of human work it would take to run along a highway at 100km/hr. Imagine manually rotating an engine, powering an alternator and water pump while carrying a couple of kids in car seats, a cooler of drinks and a hockey bag on your shoulders. Now add a 1,200 kg metal frame on wheels and you’ll have a sense of the work you’re not doing when you comfortably press the accelerator. Nice!
Click to read more ...