In article , The Natural Philosopher
wrote:
charles wrote:
In article , Dave Plowman (News)
wrote:
In article , The Natural Philosopher
wrote:
It's the major factor. In still water a single person can move a
ship weighing many tons. You'll not do that with a similar weight
vehicle.


Due to the tyre rolling resistance.

I can in fact push a van weighing several toinnes on well pumped up
tyres on a dead smooth flat road.

I'm talking about a small ship like say a trawler where I've seen it
done.

I'll bet you'll not move a truck weighing anywhere near as much.

You only need to look at how much load a single horse could pull on a
canal barge.


Indeed, but it does NOT support his thesis that its 'friction'

but if it wasn't for friction, the wheels would simply spin on the ground.

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