Walter ...
A couple of nit picking comments:
If I remember my physics well, Work = energy x time.
That gets to the heart of what you are saying. The smooth caster with a long arm really has the advantage in the long run, because that caster applies the same amount of energy over slightly greater time and with a longer tip travel because his stroke length can be longer.
The short arm caster may have greater strength or not. If he does, he still must overcome the long arm casters advantage by doing a number of possible things. That's why short arm casters like Joan Wulff rely partly on shooting line on the last back cast for a , "pre-load", and the use of more body action. She's been an accomplished dance instructor, so the latter enters her distance style as what has been aptly named, "self optimization".
Gordy
From: WALTER/SUE SIMBIRSKI <simbirsw@xxxxxxx>
To: Gordon Hill <hillshead@xxxxxxx>
Subject: Re: FW: Re: STOP?
Date: Tue, 17 Jan 2006 16:24:38 -0700
Gordy - throwing in my 2 cents worth - its all about speed/velocity.
From physics -
work = energy = force x distance = 1/2 x mass x velocity x velocity
If we cut the amount of force in half then we need to double the distance
it is applied over to get the same velocity. With a longer/slower stop, if
the stop happens at the same point as a more crisp stop, we are not applying
as much forward force over the same distance.
Eventually we "run out of arm". If we haven't applied as much force as possible
up to that point we have lost the opportunity to impart energy to the line. This
translates to slower line speed which translates to less distance cast.
This goes back to each athlete taking advantage of their individual attributes.
A long armed caster doesn't have the same leverage advantage as someone who
has short arms so it is difficult for the long armed caster to apply the same
amount of force. On the other hand, the long armed caster can take advantage
of a longer casting stroke to impart energy to the line. The short armed caster
will also need more control of their timing because the additional force means
greater load applied which results in greater bend in the rod.
The long armed caster could improve their ability to apply force through strength
training but we are talking about elite casters and I'm assuming they've done
everything they can to build strength and optimize their stroke.
Not really making any point here. Just trying to organize thoughts on the matter.
One more really trivial point - a slower stop does not mean more energy is lost
in the form of heat because not as much energy has been entered into the system
in the first place.
Thanks for listening to my ramblings.
Walter
From: Jeff Wagner <jeff@xxxxxxxxxxxxxxxx>
To: Paul Arden <paul@xxxxxxxxxxxxxxx>
CC: Gordon Hill <hillshead@xxxxxxx>
Subject: Re: STOP?
Date: Tue, 17 Jan 2006 10:47:31 -0700