Great photos bucket!

I don't think CF produces an over roll. It doesn't produce a roll at all. It produces angled hinging.

I actually thought that CF (or actually angular speed) would add inertia and make it harder to close the club than when it is at rest. But after a brief check on www on angular inertia, coreolis force etc I think the work requred is the same in any case.

The machine have to close the club directly. A level hip probably helps for precision. And a good pair of wedges. A little initial torque from the top or somewhere in the down stroke. And keeping the left wrist vertical throughout. Whether the closing is freewheeling or adjusted by the hands isn't a biggie. The hands know their impact alignments whether they are right or wrong, and the work involved in closing the club is anyway close to nil.

Just my 5 cent.

berntR

What are effects of decelleration do you think?

Thanks

I am not sure I understand the question O.B.Left.

All the cf will do is keep the club moving in circles at a constant speed. It's the radial pp forces and possibly a momentum at the hinge pin that increases rotary speed.

If you let go of CF the club will go way left. Spinning around its longitudinal MOI befor it lands in the dirt.

When I said above that CF produces angled hinging I wasn't intending to exclude horizontal hinging. The spin can be horizontal and therefore also the hinging can be horizontal. Or vertical. if the plane is vertical But not dual.

Thanks BerntR

Perhaps my post's title or question is incorrectly worded from a science point of view then. When I say CF perhaps I should say Radial Force or Rotational force or some such thing.

I think I get what you are saying in last paragraph. So assuming we are on an Inclined Plane somewhere in between vertical and horizontal, an Angled Hinge will tend towards the characteristics of the closest plane be it vertical or horizontal. Is that what you mean?

In that case, Homer's string demonstration, didnt/couldnt display horizontal hinging but rather an Angled Hinge.

I don't believe that Mr Kelley used the term either. He was very precise with his written and spoken word according to legend. However, I am not aware that he forbade his students from adopting ways of expressing themselves to their students in a manner they considered the most expedient to get the message across. The message rather than the messenger being the important item.

"Feast at your table" is an analogy. I used it in relation to those who wholly subscribe your view: as opposed to those who do not and, dare I add, sometimes are made to suffer for it.

On an occasion, perhaps, when Mr Kelley's terminology was proving difficult to grasp. On the other hand, Mr Doyle's expression may have been, at that time, a little more succinct.

The methods of expression used should depend more on the person receiving the information, I think, than the person giving it. But, I don't think "dumping" would have been a term of any relevance to that excercise anyhow.

You and Homer together O.B. - I get nervous!

So I start thinking: Maybe the rotation doesn't care whether the club face is vertical at all times. So I do a little experiment. You can do it to:

Take aquired motion with your right hand. From horizontal to horizontal. Flat vertical hand at all times. Anti clockwise rotation right? Then turn around 180% and complete the circle. Not down and up. But up and back to horizontal. Complete the circle. Clock wise rotation on the upper half.

I don't see how this - anti clock wise and clock wise can alternate without additional forces doing something. Can earth gravity do it? Maybe but I don't see how at the moment.

What I see is right shoulder geometry in action . . . look at Hogan's right shoulder (Lynnard LBGreengenez too!) compared to Scott at start down. Scott's right shoulder has already ducked under his left shoulder . . . axis tilt already starting to kick in. Take a look farther into the swing and compare where Eldrick's right shoulder is compared to Hogan at a similar spot in the swang . . . Hogan's right arm "runs out of chain" way later than Eldrick and Scott too . . . Eldrick's gettin his tilt by his head going back vs. Hogan who get's his axis tilt from his hips going forward. Look at Scott's wrist just past follow thru . . . he's rubbing forearms together (you can get thrown in jail for that down here) . . . but do you think he's trying to do that? Or can't help it?

Maybe not stally . . . but pivot geometry ain't as nice as some . . . could be something to do with his whacky posture . . .



Much better here . . .

Thanks for sharing Bucket. You're giving away some of the secret spices and herbs here. Awesome.

Are you criticizing me because I'm Muslim? داريل دَلساسو







Seriously, there's a difference between "Lively" discussion and someone "Suffering". I think it has a lot to do with the perception of the one reading the response. I'm not a "mean" person. I certainly don't want people to suffer. OMG, this is a Golf Forum.

I'll think of a "Warning" that I can use as a "Signature", visible at the end of every post I write, that will advise the reader that -no harm - was intended and I hope that personal injury was not suffered from reading this post.