> Jan Verschueren heeft geschreven in bericht ...
>>The first bicycles were really silly too. Ever tried to ride one of
> those?
>>They would have remained an oddity but for the current, chain driven
> shape
>>emerging.
> Yeah, always wondered why it took them so long before
> building the one that Leonardo Da Vinci drawed 400 yrs before
> and almost looked the same as our modern bycicle.
> Hans van Dam
The answer is pretty simple really. They had to wait for the metalurgy to
make a viable chain. The design isn't quite as simple as it appears at
first glance either. The idea was obvious, the application took a while.
At this point the chain drive bike can be as much as 98% efficient.
For $300 bucks I can buy a bike that weighs one third less than the Segway.
Goes twice as fast and is fueled by Snickers bars that I get to eat, all
the while becoming a healthier, stronger human being, instead of reducing
myself to a brain in a muscleless blob on an electric cart.
KFG