Re: [Paddlewise] Clarification?

Peter wrote:

> > or more accurately thrust output vs. work input.

To which Michael Daly" <mikedaly_at_magma.ca> replied:

> One's a vector, the other's a scalor; the units of measure don't
> match. You're were better off with energy in and out.

True, they usually refer to different things:  one is a force, and the other
is a work unit.  I wonder if Peter is using "thrust" in some different way
than what I have normally seen.  Can "thrust" refer to foot-pounds?  I
always thought it meant force.  Maybe Peter can clear this up.

I think the comparison to make might be the work the paddle does on the
water (how in heck you would measure that, I don't know) compared to the
work input by the paddler on the paddle.  I bet the former is what Peter
means by "thrust."

I agree with Peter's suggestion that monitoring (and normalizing) a
paddler's respiratory demand is perhaps a decent way to eliminate or reduce
differences in real effort by the paddler.

--
Dave Kruger
***************************************************************************
PaddleWise Paddling Mailing List - Any opinions or suggestions expressed
here are solely those of the writer(s). You must assume the entire
responsibility for reliance upon them. All postings copyright the author.
Submissions:     PaddleWise_at_PaddleWise.net
Subscriptions:   PaddleWise-request_at_PaddleWise.net
Website:         http://www.paddlewise.net/
***************************************************************************