Agreed, but angular speed is measured in RPM, so even though the club is traveling faster in MPH in relation to the left arm, RPM is the same because left arm, left wrist and club are in line.
The hands and the club have the same RPM. There is no alternative as long as you hold your grip throughout. But the arms have lower RPM than the club.
I am not confusing RPM with MPH. I've even explained in an earlier post why the MPH diffence between hands speed and clubhead speed can't be explained without a significant RPM difference being present. But you seem to read my posts with less presicion than I write them. My English may not be the most eloquent. But I make an effort to be clear and precise on such matters. It doesn't help much if the reader doesn't appreciate the clarity though.
Like so many golfing machine concepts, rhythm is hard to grasp not only because Homer used a word that has an intuitive meaning to most people, but also because the importance and precision of Homer's definition doesn't resonate with most people...until it is distilled and explained by great teachers.
He didn't fully define rhythm or mention it(I haven't found any use of the word) until the 4th edition. The development of the concept was important in describing accumulator #3 (6-B-3-0) The Third Power Accumulator - Roll Power.
Starting with 4th edition, Homer expanded 2-P to include the concept of rhythm when describing the function of wristcock. The term wasn't included in prior editions in this context. He also added the "golfers flail" sketches in 2K. Likewise, the Homer hadn't fully developed the concept of the physics of Hinging until the 4th edition in 2-G.
In the 4th edition he also expanded 2-G, the physics of hinging for hitting and swinging was that, "Roll is actually imparted by the turning torso and/or the orbiting arms per 2-K4 and 2-K5...The point to be learned here is that the Club, because of the Flat Left Wrist, must always travel at the same RPM as the Arms and reproduce the Hinging inherent in the selected Lag Loading procedure (10-19) per 4-D, 9-2, and 9-3, regardless of Clubhead Extention velocity. This is the basis of Golf Stroke Rhythm". In the 5th edition he removed the last sentence and replaced it with "See 2-P".
Thanks for the reply Bernt. I'll reread your earlier post and try to reconcile it. You're probably on to something.
__________________
Bagger
1-H "Because of questions of all kinds, reams of additional detail must be made available - but separately, and probably endlessly." Homer Kelly
Technical reasoning: If they move at the same RPM and the clubshaft is twice as long as the left arm, the clubhead speed would be 3 times as fast as the hands speed - all due to increased swing radius. With a hand speed of 15 MPH that gives you a club head speed of 45 MPH. A shaft that is twice as long as your arm is probably an illegal driver so the 45 MPH figure can safely be regarded as a theoretical maximum.Now, if the club head speed really is 100 MPH, you have at least 55 MPH that aren't yet accounted for. You need higher RPM to explain it.
A more golf like explanation: You don't have to be a mechanical engineer to get this. Remember that between 9 and 3 (as in a 9-3 drill), the left arm goes from parallel to parallel (to the plane line) while the club shaft goes from vertical to vertical. Parallel to parallel means that the left arm rotates 180 degrees. Vertical to vertical means that the club shaft rotates 360 degrees. So in average for the 9-3 motion, the shaft has twice as high RPM as the left arm from 9-3. If you account for a late release here, we are certainly talking about a much higher RPM difference through impact.
Only if you zero accumulator #2 and #3 (or freeze them) will you get the same RPM for arm and club shaft. I guess some does that with the putter but that would be the only shot where this is possible.
If I understand correctly, you are differentiating arm/hand RPM from clubhead RPM.
Viewed as separate entities, the clubhead has much greater travel and speed than arms/hands.
The difference:
As the left arm flying wedge, clubhead/shaft, left wrist, and arm are combined into a three sided triangle. The left arm flying wedge is viewed as a dynamic unit in motion. One corner is left shoulder, the other corner is left wristcock, and the third corner is clubhead.
Viewed as a wedged shaped triangle the entire unit travels at the same RPM from the shoulder, even though two sides of the triangle nearly come together or combine with the third side momentarily if accumulator 2 & 3 are zeroed out at low point. So while in motion, there is clubhead overtaking, i.e. one side of the triangle between clubhead and shoulder lengthens, but the overall wedge rotates at the same RPM speed.
It is a two dimensional flying wedge set on the plane of the left wristcock motion. If it goes 3D or ceases to be a triangle due to clubhead throwaway, then rhythm has been lost.
I wish we had an animation artist around to show this.
__________________
Bagger
1-H "Because of questions of all kinds, reams of additional detail must be made available - but separately, and probably endlessly." Homer Kelly
Shown is the Plane of the Left Wrist Cock (the Left Arm Wedge). Unfortunately, you don't see the rotation of the Plane as the Uncocking progresses as the Left Arm Wedge gets closer to impact. You'll need to use your 3D brain to visualize the rotation.
I get tired of copying and pasting all the good comments and drawings on this forum to a file now called "Best of Lynn Blake 4". Golly Lynn should just write a book with Daryl doing the illustrations. What a great presentation of the flying wedge. Now if Daryl could animate could have one figure with left arm flying wedge in the yellow color, then another figure of right arm flying wedge in red all in motion. Then both together. Then add in appropriate music. Then work it out so we could program it to change plane, lie, speed etc. Then of course could overlay the wedges on a pro golfers swing making the planes transparent. Even a better idea would use Lynn's swing and overlay the planes on his motion. He could then demo hinging swinging and hitting with the wedges overlaid. I can see it now an ebook that would teach golf incorporating lynn's swing and Daryl's drawings all set into motion.
Of course that ebook would also have the yellow book digitized so it could be searched. Notes included would reference the yellow book and then you could click on it and it would pop right up. then additional buttons would be available to bring up additional yellow book stuff that would be appropriate. Then you could put it all on your ipad and take it to the range. Of course the new ipad will have two cameras. The one for golf could have the high speed camera with swing analyzing software. Don't forget they are now developing a device to attach to the club that will replace trackman!. Probably have devices to clip to your shoulders leg and head that will provide 3D analysis. New golf caps will have have heads up displays for practice to help your adjust "your machine".
It's all coming
I get tired of copying and pasting all the good comments and drawings on this forum to a file now called "Best of Lynn Blake 4". Golly Lynn should just write a book with Daryl doing the illustrations. What a great presentation of the flying wedge. Now if Daryl could animate could have one figure with left arm flying wedge in the yellow color, then another figure of right arm flying wedge in red all in motion. Then both together. Then add in appropriate music. Then work it out so we could program it to change plane, lie, speed etc. Then of course could overlay the wedges on a pro golfers swing making the planes transparent. Even a better idea would use Lynn's swing and overlay the planes on his motion. He could then demo hinging swinging and hitting with the wedges overlaid. I can see it now an ebook that would teach golf incorporating lynn's swing and Daryl's drawings all set into motion.
Of course that ebook would also have the yellow book digitized so it could be searched. Notes included would reference the yellow book and then you could click on it and it would pop right up. then additional buttons would be available to bring up additional yellow book stuff that would be appropriate. Then you could put it all on your ipad and take it to the range. Of course the new ipad will have two cameras. The one for golf could have the high speed camera with swing analyzing software. Don't forget they are now developing a device to attach to the club that will replace trackman!. Probably have devices to clip to your shoulders leg and head that will provide 3D analysis. New golf caps will have have heads up displays for practice to help your adjust "your machine".
It's all coming
Shown is the Plane of the Left Wrist Cock (the Left Arm Wedge). Unfortunately, you don't see the rotation of the Plane as the Uncocking progresses as the Left Arm Wedge gets closer to impact. You'll need to use your 3D brain to visualize the rotation.
Awesome Daryl - Just as I see it in my minds eye, except in motion, rotating and blue.
Blue is the color of my wedgie.
Thanks!
__________________
Bagger
1-H "Because of questions of all kinds, reams of additional detail must be made available - but separately, and probably endlessly." Homer Kelly
Just as I see it too. The club rotates ca 120 deggrees in that figure while the arm rotates 45. That is based on their angle away from vertical when the motion starts.
Bagger,
Naturally I agree with your description of the flying wedge. There's however nothing in there that disputes that the club has higher RPM than the right arm.
Just as I see it too. The club rotates ca 120 deggrees in that figure while the arm rotates 45. That is based on their angle away from vertical when the motion starts.
Bagger,
Naturally I agree with your description of the flying wedge. There's however nothing in there that disputes that the club has higher RPM than the right arm.
Hmm? RPM refers to the Plane of the Left Wrist Cock, not the Wrist Cock. The Wrist Cock occurs in a Vertical Plane. RPM occurs in the Horizontal Plane.
How many Revolutions per Minute is the Clubhead completing?
How many Revolutions per Minute is the Left Wrist completing?
Linear Mode
