LynnBlakeGolf Forums - View Single Post - Conservation of Angular Momentum . . . Thread: Conservation of Angular Momentum . . . View Single Post #7 10-12-2006, 07:01 PM ThinkingPlus Senior Member Join Date: Sep 2005 Location: Palmdale, CA Posts: 234 Experimentally Derived Originally Posted by EdZ Ah, but this can lift some fog for any true swinger IMO The image shows you why there have been many who speak of 'complete the backswing' or 'pause at the top' or 'wait for it' as transition swing keys. The image shows you what happens if you start down too quick/too soon - throwaway There are also some lessons here for the aiming point concept.....and loading One of the reasons I love the Tour Tempo sounds - they show you how to make sure you don't start down too soon - how to let gravity help you with your timing so that 'lower pendulumn' doesn't out race the upper and throw the club away. I suspect many may dismiss this as a minor point - but if you are a swinger, a very, very important image to understand (why this shows a bad example, and what a 'true swing' would need to be for there not to be throw away) Steph - do you know the calculation which would show what the ratio of back to through would need to be (in time) of the primary pendulumn for the secondary pendulumn not to have throw away (until about 7-8 o'clock as 'in line')? Just curious if my understanding of a 3 to 1 ratio (pi) is correct. Ed, I think the Tour Tempo 3 to 1 factor was experimentally or observationally derived. It would not be easy to solve the double pendulum equations to arrive at that ratio. Basically, that double pendulum figure is being driven strictly by gravity. There are no other forcing functions. In the golf stroke with forces active during takeaway and the down swing, it gets very complicated to derive timing ratios like you are looking for. Someone may have done it, but I am not aware of such work. Sorry. __________________ _________________________________ Steph Distance is Magic; Precision is Practice. ThinkingPlus View Public Profile Send a private message to ThinkingPlus Visit ThinkingPlus's homepage! Find all posts by ThinkingPlus