02-11-2011, 05:34 AM
Mark, I like your extrapolations of pedalling vs. how much energy one can derive. Believe me, I know what it takes to pedal a bike. I ride for several hours a day. Riding stationary would be a cruise compared to riding on a mountain. I also think a sophisticated transmission system would add greatly to the efficiency.
There's no argument that fossil fuels are limited. The industrial revolution is only slightly over 100 years old. At our current rate of consumption growth, our great grand children will not have oil to play with. Something pretty drastic has to change. The world 100 years from now will look very different.
There's no argument that fossil fuels are limited. The industrial revolution is only slightly over 100 years old. At our current rate of consumption growth, our great grand children will not have oil to play with. Something pretty drastic has to change. The world 100 years from now will look very different.