On Fri, 03 Aug 2012 23:40:58 +0100, The Natural Philosopher wrote:

Davey wrote:
On Sat, 4 Aug 2012 05:48:34 +1000 "Rod Speed"
wrote:

Owain wrote
wrote
Stuff as basic as a bike doesn't need an engine if you've got legs.
A bicycle is almost the most efficient method of using human power
for propulsion.

Rather less efficient than walking,
Fraid not. Walking does burn more energy than riding a bike over the
same distance.

as the weight of the bicycle also has to be propelled.
It is in fact much more complicated than that.

If you want to get from A to B, say 10 miles apart, in an hour, you
would be far better off riding a bicycle than trying to walk it. With
the bicycle, you would be ready to go to work, if you had managed to
walk there in that time, you would be ready for the hospital.

I am..frankly..flabbergasted.

10 miles is not a onerous walk on any surface a bike works.

Its about 4 hours thats all.

That seems pretty basic.

But he said "in an hour".



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