An interesting point which is perhaps germaine, perhaps not - the bicycle is by far the most energy efficient form of human transportation. This is because it m

An interesting point which is perhaps germaine, perhaps not - the bicycle is by far the most energy efficient form of human transportation. This is because it makes best use of the highly efficient biological engine we all already posses. http://en.wikipedia.org/wiki/Bicycle_performance#Energy_efficiency http://en.wikipedia.org/wiki/Bicycle_performance#Energy_effi...