3 ms·
I would say that's not precisely true. the point of rail systems started out as "big power plant pulls lots of load". Once that was in place, yes, rolling very
by fsckboy 2y ago
I would say that's not precisely true. the point of rail systems started out as "big power plant pulls lots of load". Once that was in place, yes, rolling very far unpowered becomes a compelling improvement.
a good comparison would be the invention of the travois https://en.wikipedia.org/wiki/Travois https://en.wikipedia.org/wiki/Travois which benefitted from the addition of wheels.
- ianburrell 2y agoRails were invented for horse drawn carts. The low rolling resistance was the point. First steam locomotives were pretty weak and needed the efficiency. They were also used on existing tramways that had to be upgraded as trains got bigger.